{"id":259,"date":"2025-10-17T10:09:33","date_gmt":"2025-10-17T02:09:33","guid":{"rendered":"https:\/\/zd1269878.noblogs.org\/?p=259"},"modified":"2025-10-17T10:09:55","modified_gmt":"2025-10-17T02:09:55","slug":"c","status":"publish","type":"post","link":"https:\/\/zd1269878.noblogs.org\/en-US\/post\/2025\/10\/17\/c\/","title":{"rendered":"C++"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\" id=\"\u5165\u95e8\">\u5165\u95e8<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"hellocpp\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#hellocpp\"><\/a>hello.cpp<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>#include &lt;iostream&gt;\nint main() {\n    std::cout &lt;&lt; \"Hello Quick Reference\\n\";\n    return 0;\n}\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u7f16\u8bd1\u8fd0\u884c<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>$ g++ hello.cpp -o hello\n$ .\/hello\nHello Quick Reference\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u53d8\u91cf\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E5%8F%98%E9%87%8F\"><\/a>\u53d8\u91cf<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>int number = 5;       \/\/ \u6574\u6570\nfloat f = 0.95;       \/\/ \u6d6e\u70b9\u6570\ndouble PI = 3.14159;  \/\/ \u6d6e\u70b9\u6570\nchar yes = 'Y';       \/\/ \u7279\u70b9\nstd::string s = \"ME\"; \/\/ \u5b57\u7b26\u4e32\uff08\u6587\u672c\uff09\nbool isRight = true;  \/\/ \u5e03\u5c14\u503c\n\/\/ \u5e38\u91cf\nconst float RATE = 0.8;\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<pre class=\"wp-block-code\"><code>int age {25};      \/\/ \u81ea C++11\nstd::cout &lt;&lt; age;  \/\/ \u6253\u5370 25\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u539f\u59cb\u6570\u636e\u7c7b\u578b\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E5%8E%9F%E5%A7%8B%E6%95%B0%E6%8D%AE%E7%B1%BB%E5%9E%8B\"><\/a>\u539f\u59cb\u6570\u636e\u7c7b\u578b<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u6570\u636e\u7c7b\u578b<\/th><th>\u5927\u5c0f<\/th><th>\u8303\u56f4<\/th><\/tr><\/thead><tbody><tr><td><code>int<\/code><\/td><td>4 bytes<\/td><td>-2<sup>31<\/sup>&nbsp;\u5230 2<sup>31<\/sup>-1<\/td><\/tr><tr><td><code>float<\/code><\/td><td>4 bytes<\/td><td><em>N\/A<\/em><\/td><\/tr><tr><td><code>double<\/code><\/td><td>8 bytes<\/td><td><em>N\/A<\/em><\/td><\/tr><tr><td><code>char<\/code><\/td><td>1 byte<\/td><td>-128 \u5230 127<\/td><\/tr><tr><td><code>bool<\/code><\/td><td>1 byte<\/td><td><code>true<\/code>&nbsp;\/&nbsp;<code>false<\/code><\/td><\/tr><tr><td><code>void<\/code><\/td><td><em>N\/A<\/em><\/td><td><em>N\/A<\/em><\/td><\/tr><tr><td><code>wchar_t<\/code><\/td><td>2 \u5230 4 bytes<\/td><td>1 \u4e2a\u5bbd\u5b57\u7b26<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u7528\u6237\u8f93\u5165\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E7%94%A8%E6%88%B7%E8%BE%93%E5%85%A5\"><\/a>\u7528\u6237\u8f93\u5165<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>int num;\nstd::cout &lt;&lt; \"Type a number: \";\nstd::cin &gt;&gt; num;\nstd::cout &lt;&lt; \"You entered \" &lt;&lt; num;\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u4ea4\u6362\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E4%BA%A4%E6%8D%A2\"><\/a>\u4ea4\u6362<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>int a = 5, b = 10;\nstd::swap(a, b);\n\/\/ \u8f93\u51fa: a=10, b=5\nstd::cout &lt;&lt; \"a=\" &lt;&lt; a &lt;&lt; \", b=\" &lt;&lt; b;\n\n\/\/ \u6574\u6570\u4ea4\u6362\u7684\u5947\u6280\u6deb\u5de7\n(x ^= y), (y ^= x), (x ^= y);\n\/\/ \u6ce8\u610f\uff01 \u4ee5\u4e0b\u64cd\u4f5c\u4f1a\u9020\u6210  undefined behavior\nx ^= y ^= x ^= y;\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u6ce8\u91ca\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E6%B3%A8%E9%87%8A\"><\/a>\u6ce8\u91ca<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ C++\u4e2d\u7684\u5355\u884c\u6ce8\u91ca\n\/* \u8fd9\u662f\u4e00\u4e2a\u591a\u884c\u6ce8\u91ca\n    \u5728 C++ \u4e2d *\/\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"if-\u8bed\u53e5\">if \u8bed\u53e5<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>if (a == 10) {\n    \/\/ do something\n}\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u5faa\u73af\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E5%BE%AA%E7%8E%AF\"><\/a>\u5faa\u73af<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>for (int i = 0; i &lt; 10; i++) {\n    std::cout &lt;&lt; i &lt;&lt; \"\\n\";\n}\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u51fd\u6570\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E5%87%BD%E6%95%B0\"><\/a>\u51fd\u6570<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>#include &lt;iostream&gt;\n\nvoid hello();   \/\/ \u58f0\u660e\n\nint main() {    \/\/ \u4e3b\u51fd\u6570\n    hello();    \/\/ \u6267\u884c\u51fd\u6570\n}\n\nvoid hello() { \/\/ \u5b9a\u4e49\n  std::cout &lt;&lt; \"Hello Quick Reference!\\n\";\n}\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u5f15\u7528\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E5%BC%95%E7%94%A8\"><\/a>\u5f15\u7528<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>int i = 1;\nint&amp; ri = i; \/\/ ri \u662f\u5bf9 i \u7684\u5f15\u7528\nri = 2; \/\/ i \u73b0\u5728\u6539\u4e3a 2\nstd::cout &lt;&lt; \"i=\" &lt;&lt; i;\ni = 3;   \/\/ i \u73b0\u5728\u6539\u4e3a 3\nstd::cout &lt;&lt; \"ri=\" &lt;&lt; ri;\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><code>ri<\/code>&nbsp;\u548c&nbsp;<code>i<\/code>&nbsp;\u6307\u7684\u662f\u76f8\u540c\u7684\u5185\u5b58\u4f4d\u7f6e<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u547d\u540d\u7a7a\u95f4\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E5%91%BD%E5%90%8D%E7%A9%BA%E9%97%B4\"><\/a>\u547d\u540d\u7a7a\u95f4<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>#include &lt;iostream&gt;\nnamespace ns1 {int val(){return 5;}}\nint main()\n{\n    std::cout &lt;&lt; ns1::val();\n}\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<pre class=\"wp-block-code\"><code>#include &lt;iostream&gt;\nnamespace ns1 {int val(){return 5;}}\nusing namespace ns1;\nusing namespace std;\nint main()\n{\n    cout &lt;&lt; val();\n}\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u540d\u79f0\u7a7a\u95f4\u5141\u8bb8\u540d\u79f0\u4e0b\u7684\u5168\u5c40\u6807\u8bc6\u7b26<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"c-\u6570\u7ec4\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#c-%E6%95%B0%E7%BB%84\"><\/a>C++ \u6570\u7ec4<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u5b9a\u4e49\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E5%AE%9A%E4%B9%89\"><\/a>\u5b9a\u4e49<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>std::array&lt;int, 3&gt; marks; \/\/ \u5b9a\u4e49\nmarks&#091;0] = 92;\nmarks&#091;1] = 97;\nmarks&#091;2] = 98;\n\/\/ \u5b9a\u4e49\u548c\u521d\u59cb\u5316\nstd::array&lt;int, 3&gt; marks = {92, 97, 98};\n\/\/ \u6709\u7a7a\u6210\u5458\nstd::array&lt;int, 3&gt; marks = {92, 97};\nstd::cout &lt;&lt; marks&#091;2]; \/\/ \u8f93\u51fa: 0\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u64cd\u63a7\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E6%93%8D%E6%8E%A7\"><\/a>\u64cd\u63a7<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>\u250c\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2510\n| 92  | 97  | 98  | 99  | 98  | 94  |\n\u2514\u2500\u2500\u2500\u2500\u2500\u2534\u2500\u2500\u2500\u2500\u2500\u2534\u2500\u2500\u2500\u2500\u2500\u2534\u2500\u2500\u2500\u2500\u2500\u2534\u2500\u2500\u2500\u2500\u2500\u2534\u2500\u2500\u2500\u2500\u2500\u2518\n   0     1     2     3     4     5\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<pre class=\"wp-block-code\"><code>std::array&lt;int, 6&gt; marks = {\n  92, 97, 98, 99, 98, 94\n};\n\/\/ \u6253\u5370\u7b2c\u4e00\u4e2a\u5143\u7d20\nstd::cout &lt;&lt; marks&#091;0];\n\/\/ \u5c06\u7b2c 2 \u4e2a\u5143\u7d20\u66f4\u6539\u4e3a 99\nmarks&#091;1] = 99;\n\/\/ \u4ece\u7528\u6237\u90a3\u91cc\u83b7\u53d6\u8f93\u5165\nstd::cin &gt;&gt; marks&#091;2];\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u5c55\u793a\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E5%B1%95%E7%A4%BA\"><\/a>\u5c55\u793a<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>char ref&#091;5] = {'R', 'e', 'f'};\n\/\/ \u57fa\u4e8e\u8303\u56f4\u7684for\u5faa\u73af\nfor (const int &amp;n : ref) {\n    std::cout &lt;&lt; std::string(1, n);\n}\n\/\/ \u4f20\u7edf\u7684for\u5faa\u73af\nfor (int i = 0; i &lt; sizeof(ref); ++i) {\n    std::cout &lt;&lt; ref&#091;i];\n}\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u591a\u7ef4\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E5%A4%9A%E7%BB%B4\"><\/a>\u591a\u7ef4<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>     j0   j1   j2   j3   j4   j5\n   \u250c\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2510\ni0 | 1  | 2  | 3  | 4  | 5  | 6  |\n   \u251c\u2500\u2500\u2500\u2500\u253c\u2500\u2500\u2500\u2500\u253c\u2500\u2500\u2500\u2500\u253c\u2500\u2500\u2500\u2500\u253c\u2500\u2500\u2500\u2500\u253c\u2500\u2500\u2500\u2500\u2524\ni1 | 6  | 5  | 4  | 3  | 2  | 1  |\n   \u2514\u2500\u2500\u2500\u2500\u2534\u2500\u2500\u2500\u2500\u2534\u2500\u2500\u2500\u2500\u2534\u2500\u2500\u2500\u2500\u2534\u2500\u2500\u2500\u2500\u2534\u2500\u2500\u2500\u2500\u2518\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<pre class=\"wp-block-code\"><code>int x&#091;2]&#091;6] = {\n    {1,2,3,4,5,6}, {6,5,4,3,2,1}\n};\nfor (int i = 0; i &lt; 2; ++i) {\n    for (int j = 0; j &lt; 6; ++j) {\n        std::cout &lt;&lt; x&#091;i]&#091;j] &lt;&lt; \" \";\n    }\n}\n\/\/ \u8f93\u51fa: 1 2 3 4 5 6 6 5 4 3 2 1\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"c-\u6761\u4ef6\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#c-%E6%9D%A1%E4%BB%B6\"><\/a>C++ \u6761\u4ef6<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"if-clause\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#if-clause\"><\/a>If Clause<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>if (a == 10) {\n    \/\/ do something\n}\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<pre class=\"wp-block-code\"><code>int number = 16;\nif (number % 2 == 0)\n{\n    std::cout &lt;&lt; \"even\";\n}\nelse\n{\n    std::cout &lt;&lt; \"odd\";\n}\n\/\/ \u8f93\u51fa: even\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"else-if-\u8bed\u53e5\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#else-if-%E8%AF%AD%E5%8F%A5\"><\/a>Else if \u8bed\u53e5<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>int score = 99;\nif (score == 100) {\n    std::cout &lt;&lt; \"Superb\";\n}\nelse if (score &gt;= 90) {\n    std::cout &lt;&lt; \"Excellent\";\n}\nelse if (score &gt;= 80) {\n    std::cout &lt;&lt; \"Very Good\";\n}\nelse if (score &gt;= 70) {\n    std::cout &lt;&lt; \"Good\";\n}\nelse if (score &gt;= 60)\n    std::cout &lt;&lt; \"OK\";\nelse\n    std::cout &lt;&lt; \"What?\";\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u8fd0\u7b97\u7b26\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E8%BF%90%E7%AE%97%E7%AC%A6\"><\/a>\u8fd0\u7b97\u7b26<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"\u5173\u7cfb\u8fd0\u7b97\u7b26\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E5%85%B3%E7%B3%BB%E8%BF%90%E7%AE%97%E7%AC%A6\"><\/a>\u5173\u7cfb\u8fd0\u7b97\u7b26<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><code>a == b<\/code><\/td><td>a \u7b49\u4e8e b<\/td><\/tr><tr><td><code>a != b<\/code><\/td><td>a \u4e0d\u7b49\u4e8e b<\/td><\/tr><tr><td><code>a &lt; b<\/code><\/td><td>a \u5c0f\u4e8e b<\/td><\/tr><tr><td><code>a &gt; b<\/code><\/td><td>a \u5927\u4e8e b<\/td><\/tr><tr><td><code>a &lt;= b<\/code><\/td><td>a \u5c0f\u4e8e\u6216\u7b49\u4e8e b<\/td><\/tr><tr><td><code>a &gt;= b<\/code><\/td><td>a \u5927\u4e8e\u6216\u7b49\u4e8e b<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"\u8d4b\u503c\u8fd0\u7b97\u7b26\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E8%B5%8B%E5%80%BC%E8%BF%90%E7%AE%97%E7%AC%A6\"><\/a>\u8d4b\u503c\u8fd0\u7b97\u7b26<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><code>a += b<\/code><\/td><td><em>Aka<\/em>&nbsp;<code>a = a + b<\/code><\/td><\/tr><tr><td><code>a -= b<\/code><\/td><td><em>Aka<\/em>&nbsp;<code>a = a - b<\/code><\/td><\/tr><tr><td><code>a *= b<\/code><\/td><td><em>Aka<\/em>&nbsp;<code>a = a * b<\/code><\/td><\/tr><tr><td><code>a \/= b<\/code><\/td><td><em>Aka<\/em>&nbsp;<code>a = a \/ b<\/code><\/td><\/tr><tr><td><code>a %= b<\/code><\/td><td><em>Aka<\/em>&nbsp;<code>a = a % b<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"\u903b\u8f91\u8fd0\u7b97\u7b26\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E9%80%BB%E8%BE%91%E8%BF%90%E7%AE%97%E7%AC%A6\"><\/a>\u903b\u8f91\u8fd0\u7b97\u7b26<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><code>exp1 &amp;&amp; exp2<\/code><\/td><td>Both are true&nbsp;<em>(AND)<\/em><\/td><\/tr><tr><td>`exp1<\/td><td><\/td><\/tr><tr><td><code>!exp<\/code><\/td><td><code>exp<\/code>&nbsp;is false&nbsp;<em>(NOT)<\/em><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"\u4f4d\u8fd0\u7b97\u7b26\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E4%BD%8D%E8%BF%90%E7%AE%97%E7%AC%A6\"><\/a>\u4f4d\u8fd0\u7b97\u7b26<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><code>a &amp; b<\/code><\/td><td>Binary AND<\/td><\/tr><tr><td>`a<\/td><td>b`<\/td><\/tr><tr><td><code>a ^ b<\/code><\/td><td>Binary XOR<\/td><\/tr><tr><td><code>a ~ b<\/code><\/td><td>Binary One's Complement<\/td><\/tr><tr><td><code>a &lt;&lt; b<\/code><\/td><td>Binary Shift Left<\/td><\/tr><tr><td><code>a &gt;&gt; b<\/code><\/td><td>Binary Shift Right<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u4e09\u5143\u8fd0\u7b97\u7b26\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E4%B8%89%E5%85%83%E8%BF%90%E7%AE%97%E7%AC%A6\"><\/a>\u4e09\u5143\u8fd0\u7b97\u7b26<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>           \u250c\u2500\u2500 True \u2500\u2500\u2510\nResult = Condition ? Exp1 : Exp2;\n           \u2514\u2500\u2500\u2500\u2500\u2500 False \u2500\u2500\u2500\u2500\u2500\u2518\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<pre class=\"wp-block-code\"><code>int x = 3, y = 5, max;\nmax = (x &gt; y) ? x : y;\n\/\/ \u8f93\u51fa: 5\nstd::cout &lt;&lt; max &lt;&lt; std::endl;\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<pre class=\"wp-block-code\"><code>int x = 3, y = 5, max;\nif (x &gt; y) {\n    max = x;\n} else {\n    max = y;\n}\n\/\/ \u8f93\u51fa: 5\nstd::cout &lt;&lt; max &lt;&lt; std::endl;\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"switch-\u8bed\u53e5\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#switch-%E8%AF%AD%E5%8F%A5\"><\/a>switch \u8bed\u53e5<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>int num = 2;\nswitch (num) {\n    case 0:\n        std::cout &lt;&lt; \"Zero\";\n        break;\n    case 1:\n        std::cout &lt;&lt; \"One\";\n        break;\n    case 2:\n        std::cout &lt;&lt; \"Two\";\n        break;\n    case 3:\n        std::cout &lt;&lt; \"Three\";\n        break;\n    default:\n        std::cout &lt;&lt; \"What?\";\n        break;\n}\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"c-\u5faa\u73af\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#c-%E5%BE%AA%E7%8E%AF\"><\/a>C++ \u5faa\u73af<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"while\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#while\"><\/a>While<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>int i = 0;\nwhile (i &lt; 6) {\n    std::cout &lt;&lt; i++;\n}\n\/\/ \u8f93\u51fa: 012345\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"do-while\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#do-while\"><\/a>Do-while<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>int i = 1;\ndo {\n    std::cout &lt;&lt; i++;\n} while (i &lt;= 5);\n\/\/ \u8f93\u51fa: 12345\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"continue-\u8bed\u53e5\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#continue-%E8%AF%AD%E5%8F%A5\"><\/a>Continue \u8bed\u53e5<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>for (int i = 0; i &lt; 10; i++) {\n    if (i % 2 == 0) {\n        continue;\n    }\n    std::cout &lt;&lt; i;\n} \/\/ \u8f93\u51fa: 13579\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u65e0\u9650\u5faa\u73af\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E6%97%A0%E9%99%90%E5%BE%AA%E7%8E%AF\"><\/a>\u65e0\u9650\u5faa\u73af<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>while (true) { \/\/ true or 1\n    std::cout &lt;&lt; \"\u65e0\u9650\u5faa\u73af\";\n}\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<pre class=\"wp-block-code\"><code>for (;;) {\n    std::cout &lt;&lt; \"\u65e0\u9650\u5faa\u73af\";\n}\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<pre class=\"wp-block-code\"><code>for(int i = 1; i &gt; 0; i++) {\n    std::cout &lt;&lt; \"infinite loop\";\n}\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"for_each-c11-\u8d77\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#for_each-c11-%E8%B5%B7\"><\/a>for_each (C++11 \u8d77)<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>#include &lt;iostream&gt;\nint main()\n{\n    auto print = &#091;](int num) {\n      std::cout &lt;&lt; num &lt;&lt; std::endl;\n    };\n    std::array&lt;int, 4&gt; arr = {1, 2, 3, 4};\n    std::for_each(arr.begin(), arr.end(), print);\n    return 0;\n}\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u57fa\u4e8e\u8303\u56f4-c11-\u8d77\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E5%9F%BA%E4%BA%8E%E8%8C%83%E5%9B%B4-c11-%E8%B5%B7\"><\/a>\u57fa\u4e8e\u8303\u56f4 (C++11 \u8d77)<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>for (int n : {1, 2, 3, 4, 5}) {\n    std::cout &lt;&lt; n &lt;&lt; \" \";\n}\n\/\/ \u8f93\u51fa: 1 2 3 4 5\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<pre class=\"wp-block-code\"><code>std::string hello = \"Quick Reference.ME\";\nfor (char c: hello)\n{\n    std::cout &lt;&lt; c &lt;&lt; \" \";\n}\n\/\/ \u8f93\u51fa: Q u i c k R e f . M E\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u4e2d\u65ad\u8bed\u53e5\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E4%B8%AD%E6%96%AD%E8%AF%AD%E5%8F%A5\"><\/a>\u4e2d\u65ad\u8bed\u53e5<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>int password, times = 0;\nwhile (password != 1234) {\n    if (times++ &gt;= 3) {\n        std::cout &lt;&lt; \"Locked!\\n\";\n        break;\n    }\n    std::cout &lt;&lt; \"Password: \";\n    std::cin &gt;&gt; password; \/\/ input\n}\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"several-variations\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#several-variations\"><\/a>Several variations<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>for (int i = 0, j = 2; i &lt; 3; i++, j--){\n    std::cout &lt;&lt; \"i=\" &lt;&lt; i &lt;&lt; \",\";\n    std::cout &lt;&lt; \"j=\" &lt;&lt; j &lt;&lt; \";\";\n}\n\/\/ \u8f93\u51fa: i=0,j=2;i=1,j=1;i=2,j=0;\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"auto\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#auto\"><\/a>auto<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>std:: string s = \"hello world\";\nfor(auto c: s){\n    std:: cout &lt;&lt; c &lt;&lt; \" \";\n}\n\/\/ \u8f93\u51fa: h e l l o   w o r l d\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"c-\u51fd\u6570\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#c-%E5%87%BD%E6%95%B0\"><\/a>C++ \u51fd\u6570<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u53c2\u6570\u548c\u8fd4\u56de\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E5%8F%82%E6%95%B0%E5%92%8C%E8%BF%94%E5%9B%9E\"><\/a>\u53c2\u6570\u548c\u8fd4\u56de<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>#include &lt;iostream&gt;\nint add(int a, int b) {\n    return a + b;\n}\nint main() {\n    std::cout &lt;&lt; add(10, 20);\n}\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><code>add<\/code>&nbsp;\u662f\u4e00\u4e2a\u63a5\u53d7 2 \u4e2a\u6574\u6570\u5e76\u8fd4\u56de\u6574\u6570\u7684\u51fd\u6570<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u91cd\u8f7d\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E9%87%8D%E8%BD%BD\"><\/a>\u91cd\u8f7d<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>void fun(string a, string b) {\n    std::cout &lt;&lt; a + \" \" + b;\n}\nvoid fun(string a) {\n    std::cout &lt;&lt; a;\n}\nvoid fun(int a) {\n    std::cout &lt;&lt; a;\n}\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u5185\u7f6e\u51fd\u6570\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E5%86%85%E7%BD%AE%E5%87%BD%E6%95%B0\"><\/a>\u5185\u7f6e\u51fd\u6570<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>#include &lt;iostream&gt;\n#include &lt;cmath&gt; \/\/ \u5bfc\u5165\u5e93\n\nint main() {\n    \/\/ sqrt() \u6765\u81ea cmath\n    std::cout &lt;&lt; sqrt(9);\n}\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"lambda-\u8868\u8fbe\u5f0f\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#lambda-%E8%A1%A8%E8%BE%BE%E5%BC%8F\"><\/a>Lambda \u8868\u8fbe\u5f0f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Lambda \u8868\u8fbe\u5f0f\u53ef\u4ee5\u5728\u51fd\u6570\u5185\u5b9a\u4e49\uff0c\u53ef\u4ee5\u7406\u89e3\u4e3a\u5728\u51fd\u6570\u5185\u5b9a\u4e49\u7684\u4e34\u65f6\u51fd\u6570\u3002\u683c\u5f0f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>auto func = &#091;]() -&gt; return_type { };\n<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>[]<\/code>\u4e3a\u6355\u83b7\u5217\u8868\uff0c\u80fd\u591f\u6355\u83b7\u5176\u6240\u5728\u51fd\u6570\u7684\u5c40\u90e8\u53d8\u91cf\n<ul class=\"wp-block-list\">\n<li>\u4e00\u4e2a\u7a7a\u7684\u6355\u83b7\u5217\u8868\u4ee3\u8868Lambda\u8868\u8fbe\u5f0f\u4e0d\u6355\u83b7\u4efb\u4f55\u7684\u53d8\u91cf<\/li>\n\n\n\n<li>\u5bf9\u4e8e\u503c\u6355\u83b7\uff0c\u76f4\u63a5\u5728\u4e2d\u62ec\u53f7\u4e2d\u586b\u5199\u8981\u6355\u83b7\u7684\u53d8\u91cf\u5373\u53ef\uff1a<code>int val = 5; auto func = [val]() -&gt; return_type { };<\/code><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u5bf9\u4e8e\u5f15\u7528\u6355\u83b7\uff0c\u9700\u8981\u5728\u6355\u83b7\u7684\u53d8\u91cf\u524d\u6dfb\u52a0<code>&amp;<\/code>\uff1a<code>string str(\"hello world!\"); auto func = [&amp;str]() -&gt; return_type { };<\/code><\/li>\n\n\n\n<li>\u5982\u679c\u53d8\u91cf\u592a\u591a\uff0c\u9700\u8981\u7f16\u8bd1\u5668\u6839\u636e\u6211\u4eec\u7f16\u5199\u7684\u4ee3\u7801\u81ea\u52a8\u6355\u83b7\uff0c\u53ef\u4ee5\u91c7\u7528\u9690\u5f0f\u6355\u83b7\u7684\u65b9\u5f0f\u3002\n<ul class=\"wp-block-list\">\n<li>\u5168\u90e8\u503c\u6355\u83b7\uff1a<code>int val1, val2; auto func = [=]() -&gt; int { return val1 + val2; };<\/code><\/li>\n\n\n\n<li>\u5168\u90e8\u5f15\u7528\u6355\u83b7\uff1a<code>string str1(\"hello\"), str2(\"word!\"); auto func = [&amp;]() -&gt; string { return str1 + str2; };<\/code><\/li>\n\n\n\n<li>\u6df7\u5408\u9690\u5f0f\u6355\u83b7\uff1a\u5982\u679c\u5e0c\u671b\u5bf9\u4e00\u90e8\u5206\u53d8\u91cf\u91c7\u7528\u503c\u6355\u83b7\uff0c\u5bf9\u5176\u4ed6\u53d8\u91cf\u91c7\u7528\u5f15\u7528\u6355\u83b7\uff0c\u53ef\u4ee5\u6df7\u5408\u4f7f\u7528\uff1a<code>int val1 = 123, val2 = 456; string str1(\"123\"), str2(456); auto func1 = [=, &amp;str1]() -&gt; int { return val1 == std::stoi(str1) ? val1 : val2; }; auto func2 = [&amp;, val1]() -&gt; int { return str1 == std::to_string(val1) ? str1 : str2; };<\/code><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><code>()<\/code>\u00a0\u662f\u53c2\u6570\u5217\u8868\uff0c\u6211\u4eec\u53ea\u9700\u8981\u6309\u7167\u666e\u901a\u51fd\u6570\u7684\u4f7f\u7528\u65b9\u6cd5\u6765\u4f7f\u7528\u5373\u53ef<\/li>\n\n\n\n<li><code>return_type<\/code>\u00a0\u662f\u51fd\u6570\u7684\u8fd4\u56de\u7c7b\u578b\uff0c<code>-&gt; return_type<\/code>\u00a0\u53ef\u4ee5\u4e0d\u5199\uff0c\u7f16\u8bd1\u5668\u4f1a\u81ea\u52a8\u63a8\u5bfc<\/li>\n\n\n\n<li><code>{}<\/code>\u00a0\u4e2d\u7684\u5185\u5bb9\u5c31\u662f\u51fd\u6570\u4f53\uff0c\u4f9d\u7167\u666e\u901a\u51fd\u6570\u7684\u4f7f\u7528\u65b9\u6cd5\u4f7f\u7528\u5373\u53ef<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b64\u5904\u7ed9\u51fa\u4e00\u4e2a Lambda \u8868\u8fbe\u5f0f\u7684\u5b9e\u9645\u4f7f\u7528\u4f8b\u5b50(\u5f53\u7136\u53ef\u4ee5\u4f7f\u7528&nbsp;<code>str::copy<\/code>):<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ vec\u4e2d\u5305\u542b1, 2, 3, 4, 5\nstd::vector&lt;int&gt; vec({1, 2, 3, 4, 5});\nstd::for_each(vec.begin(), vec.end(),\n              &#091;](int&amp; ele) -&gt; void\n          {\n              std::cout &lt;&lt; ele\n                          &lt;&lt; \" \";\n          });\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"c\u591a\u7ebf\u7a0b\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#c%E5%A4%9A%E7%BA%BF%E7%A8%8B\"><\/a>C++\u591a\u7ebf\u7a0b<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u591a\u7ebf\u7a0b\u4ecb\u7ecd\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E5%A4%9A%E7%BA%BF%E7%A8%8B%E4%BB%8B%E7%BB%8D\"><\/a>\u591a\u7ebf\u7a0b\u4ecb\u7ecd<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">g++\u7f16\u8bd1\u9009\u9879\uff1a<code>-std=c++11<\/code>\u3002\u5305\u542b\u5934\u6587\u4ef6\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>#include &lt;thread&gt;<\/code>\uff1aC++\u591a\u7ebf\u7a0b\u5e93<\/li>\n\n\n\n<li><code>#include &lt;mutex&gt;<\/code>\uff1aC++\u4e92\u65a5\u91cf\u5e93<\/li>\n\n\n\n<li><code>#include &lt;future&gt;<\/code>\uff1aC++\u5f02\u6b65\u5e93<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u7ebf\u7a0b\u7684\u521b\u5efa\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E7%BA%BF%E7%A8%8B%E7%9A%84%E5%88%9B%E5%BB%BA\"><\/a>\u7ebf\u7a0b\u7684\u521b\u5efa<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee5\u666e\u901a\u51fd\u6570\u4f5c\u4e3a\u7ebf\u7a0b\u5165\u53e3\u51fd\u6570\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>void entry_1() { }\nvoid entry_2(int val) { }\n\nstd::thread my_thread_1(entry_1);\nstd::thread my_thread_2(entry_2, 5);\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee5\u7c7b\u5bf9\u8c61\u4f5c\u4e3a\u7ebf\u7a0b\u5165\u53e3\u51fd\u6570\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>class Entry\n{\n    void operator()() { }\n    void entry_function() { }\n};\n\nEntry entry;\n\/\/ \u8c03\u7528operator()()\nstd::thread my_thread_1(entry);\n\/\/ \u8c03\u7528Entry::entry_function\nstd::thread my_thread_2(&amp;Entry::entry_function, &amp;entry);\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee5lambda\u8868\u8fbe\u5f0f\u4f5c\u4e3a\u7ebf\u7a0b\u5165\u53e3\u51fd\u6570\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>std::thread my_thread(&#091;]() -&gt; void\n      {\n         \/\/ ...\n      });\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u7ebf\u7a0b\u7684\u9500\u6bc1\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E7%BA%BF%E7%A8%8B%E7%9A%84%E9%94%80%E6%AF%81\"><\/a>\u7ebf\u7a0b\u7684\u9500\u6bc1<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>thread my_thread;\n\/\/ \u963b\u585e\nmy_thread.join();\n\/\/ \u975e\u963b\u585e\nmy_thread.detach();\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"this_thread\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#this_thread\"><\/a><code>this_thread<\/code><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ \u83b7\u53d6\u5f53\u524d\u7ebf\u7a0bID\nstd::this_thread::get_id();\n\/\/ \u4f7f\u5f53\u524d\u7ebf\u7a0b\u4f11\u7720\u4e00\u6bb5\u6307\u5b9a\u65f6\u95f4\nstd::this_thread::sleep_for();\n\/\/ \u4f7f\u5f53\u524d\u7ebf\u7a0b\u4f11\u7720\u5230\u6307\u5b9a\u65f6\u95f4\nstd::this_thread::sleep_until();\n\/\/ \u6682\u505c\u5f53\u524d\u7ebf\u7a0b\u7684\u6267\u884c\uff0c\u8ba9\u522b\u7684\u7ebf\u7a0b\u6267\u884c\nstd::this_thread::yield();\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u9501\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E9%94%81\"><\/a>\u9501<\/h3>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><code>#include &lt;mutex&gt;<\/code><\/p>\n<\/blockquote>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"\u9501\u7684\u57fa\u672c\u64cd\u4f5c\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E9%94%81%E7%9A%84%E5%9F%BA%E6%9C%AC%E6%93%8D%E4%BD%9C\"><\/a>\u9501\u7684\u57fa\u672c\u64cd\u4f5c<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u521b\u5efa\u9501<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>std::mutex m;\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0a\u9501<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>m.lock();\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u89e3\u9501<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>m.unlock();\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5c1d\u8bd5\u4e0a\u9501\uff1a\u6210\u529f\u8fd4\u56de<code>true<\/code>\uff0c\u5931\u8d25\u8fd4\u56de<code>false<\/code><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>m.try_lock();\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u89e3\u9501<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>m.unlock();\n<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"\u66f4\u7b80\u5355\u7684\u9501--stdlock_guardmutex\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E6%9B%B4%E7%AE%80%E5%8D%95%E7%9A%84%E9%94%81--stdlock_guardmutex\"><\/a>\u66f4\u7b80\u5355\u7684\u9501 \u2014\u2014&nbsp;<code>std::lock_guard&lt;Mutex&gt;<\/code><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u6784\u9020\u65f6\u4e0a\u9501\uff0c\u6790\u6784\u65f6\u89e3\u9501<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>std::mutex m;\nstd::lock_guard&lt;std::mutex&gt; lock(m);\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u989d\u5916\u53c2\u6570\uff1a<code>std::adopt_lock<\/code>\uff1a\u53ea\u9700\u89e3\u9501\uff0c\u65e0\u9700\u4e0a\u9501<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ \u624b\u52a8\u4e0a\u9501\nm.lock();\nstd::lock_guard&lt;mutex&gt; lock(m,\n    std::adopt_lock);\n<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"unique_lockmutex\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#unique_lockmutex\"><\/a><code>unique_lock&lt;Mutex&gt;<\/code><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u6784\u9020\u4e0a\u9501\uff0c\u6790\u6784\u89e3\u9501<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>std::mutex m;\nstd::unique_lock&lt;mutex&gt; lock(m);\n<\/code><\/pre>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"stdadopt_lock\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#stdadopt_lock\"><\/a><code>std::adopt_lock<\/code><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">\u53ea\u9700\u89e3\u9501\uff0c\u65e0\u9700\u4e0a\u9501<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ \u624b\u52a8\u4e0a\u9501\nm.lock();\nstd::unique_lock&lt;mutex&gt; lock(m,\n    std::adopt_lock);\n<\/code><\/pre>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"stdtry_to_lock\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#stdtry_to_lock\"><\/a><code>std::try_to_lock<\/code><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">\u5c1d\u8bd5\u4e0a\u9501\uff0c\u53ef\u4ee5\u901a\u8fc7<code>std::unique_lock&lt;Mutex&gt;::owns_lock()<\/code>\u67e5\u770b\u72b6\u6001<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>std::unique_lock&lt;mutex&gt; lock(m,\n    std::try_to_lock);\nif (lock.owns_lock())\n{\n    \/\/ \u62ff\u5230\u4e86\u9501\n}\nelse\n{\n    \/\/ \u6ca1\u6709\n}\n<\/code><\/pre>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"stddefer_lock\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#stddefer_lock\"><\/a><code>std::defer_lock<\/code><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">\u7ed1\u5b9a\u9501\uff0c\u4f46\u4e0d\u4e0a\u9501<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>std::unique_lock&lt;mutex&gt; lock(m,\n    std::defer_lock);\nlock.lock();\nlock.unlock();\n<\/code><\/pre>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"stdunique_lockmutexrelease\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#stdunique_lockmutexrelease\"><\/a><code>std::unique_lock&lt;Mutex&gt;::release<\/code><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd4\u56de\u6240\u7ba1\u7406\u7684<code>mutex<\/code>\u5bf9\u8c61\u6307\u9488\uff0c**\u91ca\u653e\u6240\u6709\u6743\u3002**\u4e00\u65e6\u91ca\u653e\u4e86\u6240\u6709\u6743\uff0c\u90a3\u4e48\u5982\u679c\u539f\u6765\u4e92\u65a5\u91cf\u5904\u4e8e\u4e92\u65a5\u72b6\u6001\uff0c\u7a0b\u5e8f\u5458\u6709\u8d23\u4efb\u624b\u52a8\u89e3\u9501\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"stdcall_once\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#stdcall_once\"><\/a><code>std::call_once<\/code><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f53\u591a\u4e2a\u7ebf\u7a0b\u901a\u8fc7\u8fd9\u4e2a\u51fd\u6570\u8c03\u7528\u4e00\u4e2a\u53ef\u8c03\u7528\u5bf9\u8c61\u65f6\uff0c\u53ea\u4f1a\u6709\u4e00\u4e2a\u7ebf\u7a0b\u6210\u529f\u8c03\u7528\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>std::once_flag flag;\n\nvoid foo() { }\n\nstd::call_once(flag, foo);\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"stdcondition_variable\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#stdcondition_variable\"><\/a><code>std::condition_variable<\/code><\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"\u521b\u5efa\u6761\u4ef6\u53d8\u91cf\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E5%88%9B%E5%BB%BA%E6%9D%A1%E4%BB%B6%E5%8F%98%E9%87%8F\"><\/a>\u521b\u5efa\u6761\u4ef6\u53d8\u91cf<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>std::condition_variable cond;\n<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"\u7b49\u5f85\u6761\u4ef6\u53d8\u91cf\u88ab\u901a\u77e5\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E7%AD%89%E5%BE%85%E6%9D%A1%E4%BB%B6%E5%8F%98%E9%87%8F%E8%A2%AB%E9%80%9A%E7%9F%A5\"><\/a>\u7b49\u5f85\u6761\u4ef6\u53d8\u91cf\u88ab\u901a\u77e5<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>std::unique_lock&lt;std::mutex&gt;\n    lock;\nextern bool predicate();\n\n\/\/ \u8c03\u7528\u65b9\u5f0f 1\ncond.wait(lock);\n\/\/ \u8c03\u7528\u65b9\u5f0f 2\ncond.wait(lock, predicate);\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>wait<\/code>\u4e0d\u65ad\u5730\u5c1d\u8bd5\u91cd\u65b0\u83b7\u53d6\u5e76\u52a0\u9501\u8be5\u4e92\u65a5\u91cf\uff0c\u5982\u679c\u83b7\u53d6\u4e0d\u5230\uff0c\u5b83\u5c31\u5361\u5728\u8fd9\u91cc\u5e76\u53cd\u590d\u5c1d\u8bd5\u91cd\u65b0\u83b7\u53d6\uff0c\u5982\u679c\u83b7\u53d6\u5230\u4e86\uff0c\u6267\u884c\u6d41\u7a0b\u5c31\u7ee7\u7eed\u5f80\u4e0b\u8d70<\/li>\n\n\n\n<li><code>wait<\/code>\u5728\u83b7\u53d6\u5230\u4e92\u65a5\u91cf\u5e76\u52a0\u9501\u4e86\u4e92\u65a5\u91cf\u4e4b\u540e\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5982\u679c<code>wait<\/code>\u88ab\u63d0\u4f9b\u4e86\u53ef\u8c03\u7528\u5bf9\u8c61\uff0c\u90a3\u4e48\u5c31\u6267\u884c\u8fd9\u4e2a\u53ef\u8c03\u7528\u5bf9\u8c61\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5982\u679c\u8fd4\u56de\u503c\u4e3a<code>false<\/code>\uff0c\u90a3\u4e48<code>wait<\/code>\u7ee7\u7eed\u52a0\u9501\uff0c\u76f4\u5230\u518d\u6b21\u88ab notified<\/li>\n\n\n\n<li>\u5982\u679c\u8fd4\u56de\u503c\u4e3a<code>true<\/code>\uff0c\u90a3\u4e48<code>wait<\/code>\u8fd4\u56de\uff0c\u7ee7\u7eed\u6267\u884c\u6d41\u7a0b<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u5982\u679c<code>wait<\/code>\u6ca1\u6709\u7b2c\u4e8c\u4e2a\u53c2\u6570\uff0c\u90a3\u4e48\u76f4\u63a5\u8fd4\u56de\uff0c\u7ee7\u7eed\u6267\u884c<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"stdcondition_variablenotify_one\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#stdcondition_variablenotify_one\"><\/a><code>std::condition_variable::notify_one<\/code><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\"><code>notify_one<\/code>&nbsp;\u5524\u9192\u4e00\u4e2a\u8c03\u7528&nbsp;<code>wait<\/code>&nbsp;\u7684\u7ebf\u7a0b\u3002\u6ce8\u610f\u5728\u5524\u9192\u4e4b\u524d\u8981\u89e3\u9501\uff0c\u5426\u5219\u8c03\u7528&nbsp;<code>wait<\/code>&nbsp;\u7684\u7ebf\u7a0b\u4e5f\u4f1a\u56e0\u4e3a\u65e0\u6cd5\u52a0\u9501\u800c\u963b\u585e\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"stdcondition_variablenotify_all\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#stdcondition_variablenotify_all\"><\/a><code>std::condition_variable::notify_all<\/code><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u5524\u9192\u6240\u6709\u8c03\u7528&nbsp;<code>wait<\/code>&nbsp;\u7684\u7ebf\u7a0b\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u83b7\u53d6\u7ebf\u7a0b\u7684\u8fd0\u884c\u7ed3\u679c\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E8%8E%B7%E5%8F%96%E7%BA%BF%E7%A8%8B%E7%9A%84%E8%BF%90%E8%A1%8C%E7%BB%93%E6%9E%9C\"><\/a>\u83b7\u53d6\u7ebf\u7a0b\u7684\u8fd0\u884c\u7ed3\u679c<\/h3>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><code>#include &lt;future&gt;<\/code><\/p>\n<\/blockquote>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"\u521b\u5efa\u5f02\u6b65\u4efb\u52a1\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E5%88%9B%E5%BB%BA%E5%BC%82%E6%AD%A5%E4%BB%BB%E5%8A%A1\"><\/a>\u521b\u5efa\u5f02\u6b65\u4efb\u52a1<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>double func(int val);\n\n\/\/ \u4f7f\u7528std::async\u521b\u5efa\u5f02\u6b65\u4efb\u52a1\n\/\/ \u4f7f\u7528std::future\u83b7\u53d6\u7ed3\u679c\n\/\/ future\u6a21\u677f\u4e2d\u5b58\u653e\u8fd4\u56de\u503c\u7c7b\u578b\nstd::future&lt;double&gt; result =\n    std::async(func, 5);\n<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"\u83b7\u53d6\u5f02\u6b65\u4efb\u52a1\u7684\u8fd4\u56de\u503c\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E8%8E%B7%E5%8F%96%E5%BC%82%E6%AD%A5%E4%BB%BB%E5%8A%A1%E7%9A%84%E8%BF%94%E5%9B%9E%E5%80%BC\"><\/a>\u83b7\u53d6\u5f02\u6b65\u4efb\u52a1\u7684\u8fd4\u56de\u503c<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u7b49\u5f85\u5f02\u6b65\u4efb\u52a1\u7ed3\u675f\uff0c\u4f46\u662f\u4e0d\u83b7\u53d6\u8fd4\u56de\u503c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>result.wait();\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u83b7\u53d6\u5f02\u6b65\u4efb\u52a1\u7684\u8fd4\u56de\u503c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>int val = result.get();\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u6ce8\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>get()<\/code>\u8fd4\u56de\u53f3\u503c\uff0c\u56e0\u6b64\u53ea\u53ef\u8c03\u7528\u4e00\u6b21<\/li>\n\n\n\n<li>\u53ea\u8981\u8c03\u7528\u4e0a\u8ff0\u4efb\u610f\u51fd\u6570\uff0c\u7ebf\u7a0b\u5c31\u4f1a\u4e00\u76f4\u963b\u585e\u5230\u8fd4\u56de\u503c\u53ef\u7528\uff08\u5165\u53e3\u51fd\u6570\u8fd0\u884c\u7ed3\u675f\uff09<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"stdasync-\u7684\u989d\u5916\u53c2\u6570\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#stdasync-%E7%9A%84%E9%A2%9D%E5%A4%96%E5%8F%82%E6%95%B0\"><\/a><code>std::async<\/code>&nbsp;\u7684\u989d\u5916\u53c2\u6570<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u989d\u5916\u53c2\u6570\u53ef\u4ee5\u88ab\u653e\u5728&nbsp;<code>std::async<\/code>&nbsp;\u7684\u7b2c\u4e00\u4e2a\u53c2\u6570\u4f4d\u7f6e\uff0c\u7528\u4e8e\u8bbe\u5b9a&nbsp;<code>std::async<\/code>&nbsp;\u7684\u884c\u4e3a\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>std::launch::deferred<\/code>\uff1a\u5165\u53e3\u51fd\u6570\u7684\u8fd0\u884c\u4f1a\u88ab\u63a8\u8fdf\u5230<code>std::future&lt;T&gt;::get()<\/code>\u6216\u8005<code>std::future&lt;T&gt;::wait()<\/code>\u88ab\u8c03\u7528\u65f6\u3002\u6b64\u65f6\u8c03\u7528\u7ebf\u7a0b\u4f1a\u76f4\u63a5\u8fd0\u884c\u7ebf\u7a0b\u5165\u53e3\u51fd\u6570\uff0c\u6362\u8a00\u4e4b\uff0c<strong>\u4e0d\u4f1a\u521b\u5efa\u5b50\u7ebf\u7a0b<\/strong><\/li>\n\n\n\n<li><code>std::launch::async<\/code>\uff1a\u7acb\u5373\u521b\u5efa\u5b50\u7ebf\u7a0b\uff0c\u5e76\u8fd0\u884c\u7ebf\u7a0b\u5165\u53e3\u51fd\u6570<\/li>\n\n\n\n<li><code>std::launch::deferred | std::launch::async<\/code>\uff1a\u9ed8\u8ba4\u503c\uff0c\u7531\u7cfb\u7edf\u81ea\u884c\u51b3\u5b9a<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"\u8fd4\u56de\u503c\u7684\u72b6\u6001\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E8%BF%94%E5%9B%9E%E5%80%BC%E7%9A%84%E7%8A%B6%E6%80%81\"><\/a>\u8fd4\u56de\u503c\u7684\u72b6\u6001<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u8ba9\u5f53\u524d\u7ebf\u7a0b\u7b49\u5f85\u4e00\u6bb5\u65f6\u95f4\uff08\u7b49\u5f85\u5230\u6307\u5b9a\u65f6\u95f4\u70b9\uff09\uff0c\u4ee5\u671f\u5f85\u8fd4\u56de\u503c\u51c6\u5907\u597d\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>extern double foo(int val) {}\n\nstd::future&lt;double&gt; result =\n    async(foo, 5);\n\n\/\/\u8fd4\u56de\u503c\u7c7b\u578b\nstd::future_status status;\n\/\/ \u7b49\u5f85\u4e00\u6bb5\u65f6\u95f4\nstatus = result.wait_for(\n  std::chrono::seconds(1)\n  );\n\/\/ \u7b49\u5f85\u5230\u67d0\u4e00\u65f6\u95f4\u70b9\nstatus = result.wait_for(\n  std::chrono::now() +\n    std::chrono::seconds(1)\n  );\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u6307\u5b9a\u7684\u65f6\u95f4\u8fc7\u53bb\u540e\uff0c\u53ef\u4ee5\u83b7\u53d6\u7b49\u5f85\u7684\u7ed3\u679c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ \u8fd4\u56de\u503c\u5df2\u7ecf\u51c6\u5907\u597d\nif (status ==\n     std::future_status::ready)\n{\n\n}\n\/\/ \u8d85\u65f6\uff1a\u5c1a\u672a\u51c6\u5907\u597d\nelse if (status ==\n    std::future_status::timeout)\n{ }\n\/\/ \u5c1a\u672a\u542f\u52a8: std::launch::deferred\nelse if (status ==\n    std::future_status::deferred)\n{ }\n<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"\u591a\u4e2a\u8fd4\u56de\u503c\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E5%A4%9A%E4%B8%AA%E8%BF%94%E5%9B%9E%E5%80%BC\"><\/a>\u591a\u4e2a\u8fd4\u56de\u503c<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u8981\u591a\u6b21\u83b7\u53d6\u7ed3\u679c\uff0c\u53ef\u4ee5\u4f7f\u7528<code>std::shared_future<\/code>\uff0c\u5176\u4f1a\u8fd4\u56de\u7ed3\u679c\u7684\u4e00\u4e2a<strong>\u62f7\u8d1d<\/strong>\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>std::shared_future&lt;T&gt; result;\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u4e8e\u4e0d\u53ef\u62f7\u8d1d\u5bf9\u8c61\uff0c\u53ef\u4ee5\u5728<code>std::shared_future<\/code>\u4e2d\u5b58\u50a8\u5bf9\u8c61\u7684\u6307\u9488\uff0c\u800c\u975e\u6307\u9488\u672c\u8eab\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u521b\u5efa\u7ebf\u7a0b\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E5%88%9B%E5%BB%BA%E7%BA%BF%E7%A8%8B\"><\/a>\u521b\u5efa\u7ebf\u7a0b<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>void threadFunction() {\n  \/\/ \u7ebf\u7a0b\u51fd\u6570\u4f53\n  std::cout &lt;&lt; \"From thread\" &lt;&lt; std::endl;\n}\n\nint main() {\n  \/\/ \u521b\u5efa\u7ebf\u7a0b\u5e76\u5f00\u59cb\u6267\u884c\u7ebf\u7a0b\u51fd\u6570\n  std::thread t(threadFunction);\n  \n  \/\/ \u7b49\u5f85\u7ebf\u7a0b\u6267\u884c\u5b8c\u6bd5\n  t.join();\n  \n  return 0;\n}\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u4f20\u9012\u53c2\u6570\u7ed9\u7ebf\u7a0b\u51fd\u6570\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E4%BC%A0%E9%80%92%E5%8F%82%E6%95%B0%E7%BB%99%E7%BA%BF%E7%A8%8B%E5%87%BD%E6%95%B0\"><\/a>\u4f20\u9012\u53c2\u6570\u7ed9\u7ebf\u7a0b\u51fd\u6570<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>void threadFunction(int value) {\n  \/\/ \u7ebf\u7a0b\u51fd\u6570\u4f53\n  std::cout &lt;&lt; \"Received value: \" &lt;&lt; value &lt;&lt; std::endl;\n}\n\nint main() {\n  int data = 42;\n  std::thread t(threadFunction, data);\n  t.join();\n  return 0;\n}\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u4f7f\u7528lambda\u8868\u8fbe\u5f0f\u521b\u5efa\u7ebf\u7a0b\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E4%BD%BF%E7%94%A8lambda%E8%A1%A8%E8%BE%BE%E5%BC%8F%E5%88%9B%E5%BB%BA%E7%BA%BF%E7%A8%8B\"><\/a>\u4f7f\u7528Lambda\u8868\u8fbe\u5f0f\u521b\u5efa\u7ebf\u7a0b<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>int main() {\n  int data = 42;\n  std::thread t(&#091;data]() {\n      \/\/ Lambda \u8868\u8fbe\u5f0f\u4f5c\u4e3a\u7ebf\u7a0b\u51fd\u6570\n      std::cout &lt;&lt; \"Received value: \" &lt;&lt; data &lt;&lt; std::endl;\n  });\n  t.join();\n  return 0;\n}\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u5904\u7406\u7ebf\u7a0b\u95f4\u7684\u540c\u6b65\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E5%A4%84%E7%90%86%E7%BA%BF%E7%A8%8B%E9%97%B4%E7%9A%84%E5%90%8C%E6%AD%A5\"><\/a><strong>\u5904\u7406\u7ebf\u7a0b\u95f4\u7684\u540c\u6b65\uff1a<\/strong><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>#include &lt;mutex&gt;\n\nstd::mutex mtx;\n\nvoid threadFunction() {\n  std::lock_guard&lt;std::mutex&gt; lock(mtx);\n  std::cout &lt;&lt; \"Thread safe output.\" &lt;&lt; std::endl;\n}\n\nint main() {\n  std::thread t1(threadFunction);\n  std::thread t2(threadFunction);\n  t1.join();\n  t2.join();\n  return 0;\n}\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u4f7f\u7528stdasync\u542f\u52a8\u5f02\u6b65\u4efb\u52a1\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E4%BD%BF%E7%94%A8stdasync%E5%90%AF%E5%8A%A8%E5%BC%82%E6%AD%A5%E4%BB%BB%E5%8A%A1\"><\/a><strong>\u4f7f\u7528<code>std::async<\/code>\u542f\u52a8\u5f02\u6b65\u4efb\u52a1\uff1a<\/strong><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>#include &lt;future&gt;\n\nint taskFunction() {\n  \/\/ \u5f02\u6b65\u4efb\u52a1\n  return 42;\n}\n\nint main() {\n  \/\/ \u542f\u52a8\u5f02\u6b65\u4efb\u52a1\n  std::future&lt;int&gt; fut = std::async(std::launch::async, taskFunction);\n  \n  \/\/ \u83b7\u53d6\u5f02\u6b65\u4efb\u52a1\u7684\u7ed3\u679c\n  int result = fut.get();\n  \n  std::cout &lt;&lt; \"Result: \" &lt;&lt; result &lt;&lt; std::endl;\n  return 0;\n}\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"c-\u9884\u5904\u7406\u5668\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#c-%E9%A2%84%E5%A4%84%E7%90%86%E5%99%A8\"><\/a>C++ \u9884\u5904\u7406\u5668<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u9884\u5904\u7406\u5668\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E9%A2%84%E5%A4%84%E7%90%86%E5%99%A8\"><\/a>\u9884\u5904\u7406\u5668<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/preprocessor\/conditional\">if<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/preprocessor\/conditional\">elif<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/preprocessor\/conditional\">else<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/preprocessor\/conditional\">endif<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/preprocessor\/conditional\">ifdef<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/preprocessor\/conditional\">ifndef<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/preprocessor\/replace\">define<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/preprocessor\/replace\">undef<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/preprocessor\/include\">include<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/preprocessor\/line\">line<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/preprocessor\/error\">error<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/preprocessor\/impl\">pragma<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/preprocessor\/conditional\">defined<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/feature_test\">__has_include<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/feature_test\">__has_cpp_attribute<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/export\">export<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/mwiki\/index.php?title=cpp\/keyword\/import&amp;action=edit&amp;redlink=1\">import<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/mwiki\/index.php?title=cpp\/keyword\/module&amp;action=edit&amp;redlink=1\">module<\/a><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"includes\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#includes\"><\/a>Includes<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>#include \"iostream\"\n#include &lt;iostream&gt;\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"defines\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#defines\"><\/a>Defines<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>#define FOO\n#define FOO \"hello\"\n#undef FOO\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"if\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#if\"><\/a>If<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>#ifdef DEBUG\n  console.log('hi');\n#elif defined VERBOSE\n  ...\n#else\n  ...\n#endif\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"error\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#error\"><\/a>Error<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>#if VERSION == 2.0\n  #error Unsupported\n  #warning Not really supported\n#endif\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u5b8f\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E5%AE%8F\"><\/a>\u5b8f<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>#define DEG(x) ((x) * 57.29)\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u4ee4\u724c\u8fde\u63a5\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E4%BB%A4%E7%89%8C%E8%BF%9E%E6%8E%A5\"><\/a>\u4ee4\u724c\u8fde\u63a5<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>#define DST(name) name##_s name##_t\nDST(object);   #=&gt; object_s object_t;\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u5b57\u7b26\u4e32\u5316\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E5%AD%97%E7%AC%A6%E4%B8%B2%E5%8C%96\"><\/a>\u5b57\u7b26\u4e32\u5316<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>#define STR(name) #name\nchar * a = STR(object);   #=&gt; char * a = \"object\";\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u6587\u4ef6\u548c\u884c\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E6%96%87%E4%BB%B6%E5%92%8C%E8%A1%8C\"><\/a>\u6587\u4ef6\u548c\u884c<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>#define LOG(msg) console.log(__FILE__, __LINE__, msg)\n#=&gt; console.log(\"file.txt\", 3, \"hey\")\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u5404\u79cd\u5404\u6837\u7684\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E5%90%84%E7%A7%8D%E5%90%84%E6%A0%B7%E7%9A%84\"><\/a>\u5404\u79cd\u5404\u6837\u7684<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u8f6c\u4e49\u5e8f\u5217\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E8%BD%AC%E4%B9%89%E5%BA%8F%E5%88%97\"><\/a>\u8f6c\u4e49\u5e8f\u5217<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><code>\\b<\/code><\/td><td>\u9000\u683c\u952e<\/td><\/tr><tr><td><code>\\f<\/code><\/td><td>\u6362\u9875<\/td><\/tr><tr><td><code>\\n<\/code><\/td><td>\u6362\u884c<\/td><\/tr><tr><td><code>\\r<\/code><\/td><td>\u8fd4\u56de<\/td><\/tr><tr><td><code>\\t<\/code><\/td><td>\u6c34\u5e73\u5236\u8868\u7b26<\/td><\/tr><tr><td><code>\\v<\/code><\/td><td>\u5782\u76f4\u5236\u8868\u7b26<\/td><\/tr><tr><td><code>\\\\<\/code><\/td><td>\u53cd\u659c\u6760<\/td><\/tr><tr><td><code>\\'<\/code><\/td><td>\u5355\u5f15\u53f7<\/td><\/tr><tr><td><code>\\\"<\/code><\/td><td>\u53cc\u5f15\u53f7<\/td><\/tr><tr><td><code>\\?<\/code><\/td><td>\u95ee\u53f7<\/td><\/tr><tr><td><code>\\0<\/code><\/td><td>\u7a7a\u5b57\u7b26<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u5173\u952e\u5b57\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E5%85%B3%E9%94%AE%E5%AD%97\"><\/a>\u5173\u952e\u5b57<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/alignas\">alignas<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/alignof\">alignof<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/and\">and<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/and_eq\">and_eq<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/asm\">asm<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/atomic_cancel\">atomic_cancel<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/atomic_commit\">atomic_commit<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/atomic_noexcept\">atomic_noexcept<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/auto\">auto<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/bitand\">bitand<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/bitor\">bitor<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/bool\">bool<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/break\">break<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/case\">case<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/catch\">catch<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/char\">char<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/char8_t\">char8_t<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/char16_t\">char16_t<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/char32_t\">char32_t<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/class\">class<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/compl\">compl<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/concept\">concept<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/const\">const<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/consteval\">consteval<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/constexpr\">constexpr<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/constinit\">constinit<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/const_cast\">const_cast<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/continue\">continue<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/co_await\">co_await<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/co_return\">co_return<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/co_yield\">co_yield<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/decltype\">decltype<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/default\">default<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/delete\">delete<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/do\">do<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/double\">double<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/dynamic_cast\">dynamic_cast<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/else\">else<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/enum\">enum<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/explicit\">explicit<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/export\">export<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/extern\">extern<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/false\">false<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/float\">float<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/for\">for<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/friend\">friend<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/goto\">goto<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/if\">if<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/inline\">inline<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/int\">int<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/long\">long<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/mutable\">mutable<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/namespace\">namespace<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/new\">new<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/noexcept\">noexcept<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/not\">not<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/not_eq\">not_eq<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/nullptr\">nullptr<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/operator\">operator<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/or\">or<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/or_eq\">or_eq<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/private\">private<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/protected\">protected<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/public\">public<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/reflexpr\">reflexpr<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/register\">register<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/reinterpret_cast\">reinterpret_cast<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/requires\">requires<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/language\/return\">return<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/short\">short<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/signed\">signed<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/sizeof\">sizeof<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/static\">static<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/static_assert\">static_assert<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/static_cast\">static_cast<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/struct\">struct<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/switch\">switch<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/synchronized\">synchronized<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/template\">template<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/this\">this<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/thread_local\">thread_local<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/throw\">throw<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/true\">true<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/try\">try<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/typedef\">typedef<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/typeid\">typeid<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/typename\">typename<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/union\">union<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/unsigned\">unsigned<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/using\">using<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/virtual\">virtual<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/void\">void<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/volatile\">volatile<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/wchar_t\">wchar_t<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/while\">while<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/xor\">xor<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/xor_eq\">xor_eq<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/language\/final\">final<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/language\/override\">override<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/language\/transactional_memory\">transaction_safe<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/language\/transactional_memory\">transaction_safe_dynamic<\/a><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u9884\u5904\u7406\u5668-1\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E9%A2%84%E5%A4%84%E7%90%86%E5%99%A8-1\"><\/a>\u9884\u5904\u7406\u5668<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/preprocessor\/conditional\">if<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/preprocessor\/conditional\">elif<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/preprocessor\/conditional\">else<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/preprocessor\/conditional\">endif<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/preprocessor\/conditional\">ifdef<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/preprocessor\/conditional\">ifndef<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/preprocessor\/replace\">define<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/preprocessor\/replace\">undef<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/preprocessor\/include\">include<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/preprocessor\/line\">line<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/preprocessor\/error\">error<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/preprocessor\/impl\">pragma<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/preprocessor\/conditional\">defined<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/feature_test\">__has_include<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/feature_test\">__has_cpp_attribute<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/cpp\/keyword\/export\">export<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/mwiki\/index.php?title=cpp\/keyword\/import&amp;action=edit&amp;redlink=1\">import<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/mwiki\/index.php?title=cpp\/keyword\/module&amp;action=edit&amp;redlink=1\">module<\/a><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u53e6\u89c1\"><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html#%E5%8F%A6%E8%A7%81\"><\/a>\u53e6\u89c1<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/hackingcpp.com\/cpp\/cheat_sheets.html\">C++ Infographics &amp; Cheat Sheets<\/a>\u00a0<em>(hackingcpp.com)<\/em><\/li>\n\n\n\n<li><a href=\"https:\/\/zh.cppreference.com\/w\/\">C++ reference<\/a>\u00a0<em>(cppreference.com)<\/em><\/li>\n\n\n\n<li><a href=\"http:\/\/www.cplusplus.com\/doc\/tutorial\/\">C++ Language Tutorials<\/a>\u00a0<em>(cplusplus.com)<\/em><\/li>\n\n\n\n<li><a href=\"http:\/\/zd1269878.dns.army:13005\/docs\/cpp.html\">C++\u5907\u5fd8\u6e05\u5355<\/a>\u00a0<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u5165\u95e8 hello.cpp \u7f16\u8bd1\u8fd0\u884c \u53d8\u91cf \u539f\u59cb\u6570\u636e\u7c7b\u578b \u6570\u636e\u7c7b\u578b \u5927\u5c0f \u8303\u56f4 int 4 bytes -231&nbsp;\u5230 231-1 float 4 bytes N\/A double 8 bytes N\/A char 1 byte -128 \u5230 127 bool 1 byte true&nbsp;\/&nbsp;false void N\/A N\/A wchar_t 2 \u5230 4 bytes 1 \u4e2a\u5bbd\u5b57\u7b26 \u7528\u6237\u8f93\u5165 \u4ea4\u6362 \u6ce8\u91ca if \u8bed\u53e5 \u5faa\u73af \u51fd\u6570 \u5f15\u7528 ri&nbsp;\u548c&nbsp;i&nbsp;\u6307\u7684\u662f\u76f8\u540c\u7684\u5185\u5b58\u4f4d\u7f6e \u547d\u540d\u7a7a\u95f4 \u540d\u79f0\u7a7a\u95f4\u5141\u8bb8\u540d\u79f0\u4e0b\u7684\u5168\u5c40\u6807\u8bc6\u7b26 C++ \u6570\u7ec4 \u5b9a\u4e49 &hellip; <a href=\"https:\/\/zd1269878.noblogs.org\/en-US\/post\/2025\/10\/17\/c\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">C++<\/span><\/a><\/p>\n","protected":false},"author":20615,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_locale":"en_US","_original_post":"https:\/\/zd1269878.noblogs.org\/?p=259","activitypub_content_warning":"","activitypub_content_visibility":"","activitypub_max_image_attachments":4,"activitypub_interaction_policy_quote":"anyone","activitypub_status":"federated","footnotes":""},"categories":[33],"tags":[34],"class_list":["post-259","post","type-post","status-publish","format-standard","hentry","category-c","tag-c","en-US"],"_links":{"self":[{"href":"https:\/\/zd1269878.noblogs.org\/wp-json\/wp\/v2\/posts\/259","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zd1269878.noblogs.org\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zd1269878.noblogs.org\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zd1269878.noblogs.org\/wp-json\/wp\/v2\/users\/20615"}],"replies":[{"embeddable":true,"href":"https:\/\/zd1269878.noblogs.org\/wp-json\/wp\/v2\/comments?post=259"}],"version-history":[{"count":2,"href":"https:\/\/zd1269878.noblogs.org\/wp-json\/wp\/v2\/posts\/259\/revisions"}],"predecessor-version":[{"id":263,"href":"https:\/\/zd1269878.noblogs.org\/wp-json\/wp\/v2\/posts\/259\/revisions\/263"}],"wp:attachment":[{"href":"https:\/\/zd1269878.noblogs.org\/wp-json\/wp\/v2\/media?parent=259"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zd1269878.noblogs.org\/wp-json\/wp\/v2\/categories?post=259"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zd1269878.noblogs.org\/wp-json\/wp\/v2\/tags?post=259"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}