{"id":81343,"date":"2026-07-25T01:21:10","date_gmt":"2026-07-24T17:21:10","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/81343.html"},"modified":"2026-07-25T01:21:10","modified_gmt":"2026-07-24T17:21:10","slug":"c%e8%af%ad%e8%a8%80%e7%bd%91%e7%bb%9c%e7%bc%96%e7%a8%8b%ef%bc%9atcp-ip%e5%8d%8f%e8%ae%ae%e6%a0%88%e3%80%81%e5%a5%97%e6%8e%a5%e5%ad%97%e3%80%81%e6%9c%8d%e5%8a%a1%e5%99%a8-%e5%ae%a2%e6%88%b7%e7%ab%af","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/81343.html","title":{"rendered":"C\u8bed\u8a00\u7f51\u7edc\u7f16\u7a0b\uff1aTCP\/IP\u534f\u8bae\u6808\u3001\u5957\u63a5\u5b57\u3001\u670d\u52a1\u5668\/\u5ba2\u6237\u7aef\u901a\u4fe1\u6df1\u5ea6\u89e3\u6790"},"content":{"rendered":"<h2>C\u8bed\u8a00\u7f51\u7edc\u7f16\u7a0b&#xff1a;TCP\/IP\u534f\u8bae\u6808\u3001\u5957\u63a5\u5b57\u3001\u670d\u52a1\u5668\/\u5ba2\u6237\u7aef\u901a\u4fe1\u6df1\u5ea6\u89e3\u6790<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260724172108-6a639f04bfb19.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h3>\u4e00\u3001\u524d\u8a00&#xff1a;\u4e3a\u4ec0\u4e48\u7f51\u7edc\u7f16\u7a0b\u662fC\u8bed\u8a00\u5f00\u53d1\u7684\u91cd\u8981\u6280\u80fd&#xff1f;<\/h3>\n<h4>\u5b66\u4e60\u76ee\u6807<\/h4>\n<ul>\n<li>\u7406\u89e3\u7f51\u7edc\u7f16\u7a0b\u7684\u672c\u8d28&#xff1a;\u7f16\u5199\u7a0b\u5e8f\u5b9e\u73b0\u4e0d\u540c\u8bbe\u5907\u4e4b\u95f4\u7684\u7f51\u7edc\u901a\u4fe1<\/li>\n<li>\u660e\u786e\u7f51\u7edc\u7f16\u7a0b\u7684\u91cd\u8981\u6027&#xff1a;\u652f\u6491\u4e92\u8054\u7f51\u3001\u7269\u8054\u7f51\u3001\u4e91\u8ba1\u7b97\u7b49\u5e94\u7528\u7684\u57fa\u7840<\/li>\n<li>\u638c\u63e1\u672c\u7ae0\u5b66\u4e60\u91cd\u70b9&#xff1a;TCP\/IP\u534f\u8bae\u6808\u3001\u5957\u63a5\u5b57\u3001\u670d\u52a1\u5668\/\u5ba2\u6237\u7aef\u901a\u4fe1\u7684\u5f00\u53d1\u65b9\u6cd5\u3001\u907f\u5751\u6307\u5357\u3001\u5b9e\u6218\u6848\u4f8b\u5206\u6790<\/li>\n<li>\u5b66\u4f1a\u4f7f\u7528C\u8bed\u8a00\u5f00\u53d1\u7f51\u7edc\u5e94\u7528&#xff0c;\u5b9e\u73b0\u6570\u636e\u4f20\u8f93\u548c\u7f51\u7edc\u4ea4\u4e92<\/li>\n<\/ul>\n<h4>\u91cd\u70b9\u63d0\u793a<\/h4>\n<p>&#x1f4a1; \u7f51\u7edc\u7f16\u7a0b\u662fC\u8bed\u8a00\u5f00\u53d1\u7684\u91cd\u8981\u6280\u80fd&#xff01;\u4e92\u8054\u7f51\u548c\u7269\u8054\u7f51\u7684\u666e\u53ca&#xff0c;\u4f7f\u5f97\u7f51\u7edc\u7f16\u7a0b\u6210\u4e3a\u7a0b\u5e8f\u5458\u7684\u5fc5\u5907\u6280\u80fd&#xff0c;C\u8bed\u8a00\u7684\u9ad8\u6027\u80fd\u548c\u53ef\u79fb\u690d\u6027\u4f7f\u5176\u5728\u7f51\u7edc\u7f16\u7a0b\u4e2d\u5177\u6709\u91cd\u8981\u5730\u4f4d\u3002<\/p>\n<hr \/>\n<h3>\u4e8c\u3001\u6a21\u57571&#xff1a;TCP\/IP\u534f\u8bae\u6808\u57fa\u7840<\/h3>\n<h4>2.1 \u5b66\u4e60\u76ee\u6807<\/h4>\n<ul>\n<li>\u7406\u89e3TCP\/IP\u534f\u8bae\u6808\u7684\u672c\u8d28&#xff1a;\u7528\u4e8e\u7f51\u7edc\u901a\u4fe1\u7684\u534f\u8bae\u96c6\u5408&#xff0c;\u5206\u4e3a\u5e94\u7528\u5c42\u3001\u4f20\u8f93\u5c42\u3001\u7f51\u7edc\u5c42\u3001\u6570\u636e\u94fe\u8def\u5c42<\/li>\n<li>\u638c\u63e1TCP\/IP\u534f\u8bae\u6808\u7684\u7ed3\u6784&#xff1a;\u5404\u5c42\u534f\u8bae\u7684\u529f\u80fd\u548c\u4ea4\u4e92<\/li>\n<li>\u638c\u63e1TCP\/IP\u534f\u8bae\u6808\u7684\u5e38\u7528\u534f\u8bae&#xff1a;TCP\u3001UDP\u3001IP\u3001HTTP\u3001FTP\u7b49<\/li>\n<li>\u638c\u63e1TCP\/IP\u534f\u8bae\u6808\u7684\u907f\u5751\u6307\u5357&#xff1a;\u907f\u514d\u534f\u8bae\u6808\u914d\u7f6e\u9519\u8bef\u3001\u907f\u514d\u6570\u636e\u4f20\u8f93\u9519\u8bef\u3001\u907f\u514d\u8fde\u63a5\u5931\u8d25<\/li>\n<li>\u907f\u5f00TCP\/IP\u534f\u8bae\u6808\u4f7f\u7528\u76843\u5927\u5e38\u89c1\u5751<\/li>\n<\/ul>\n<h4>2.2 TCP\/IP\u534f\u8bae\u6808\u7684\u7ed3\u6784<\/h4>\n<p>\u5e94\u7528\u5c42&#xff1a;\u63d0\u4f9b\u7528\u6237\u670d\u52a1&#xff0c;\u5982HTTP\u3001FTP\u3001SMTP\u7b49<br \/>\n\u4f20\u8f93\u5c42&#xff1a;\u63d0\u4f9b\u7aef\u5230\u7aef\u7684\u901a\u4fe1&#xff0c;\u5982TCP\u3001UDP<br \/>\n\u7f51\u7edc\u5c42&#xff1a;\u63d0\u4f9b\u8def\u7531\u548c\u8f6c\u53d1\u529f\u80fd&#xff0c;\u5982IP\u3001ICMP<br \/>\n\u6570\u636e\u94fe\u8def\u5c42&#xff1a;\u63d0\u4f9b\u7269\u7406\u8fde\u63a5\u548c\u5e27\u4f20\u8f93&#xff0c;\u5982\u4ee5\u592a\u7f51\u3001WiFi<\/p>\n<h4>2.3 TCP\/IP\u534f\u8bae\u6808\u7684\u5e38\u7528\u534f\u8bae<\/h4>\n<p>TCP\u534f\u8bae&#xff1a;<\/p>\n<ul>\n<li>\u53ef\u9760\u7684\u3001\u9762\u5411\u8fde\u63a5\u7684\u4f20\u8f93\u534f\u8bae<\/li>\n<li>\u91cd\u4f20\u673a\u5236\u3001\u6ed1\u52a8\u7a97\u53e3\u3001\u62e5\u585e\u63a7\u5236<\/li>\n<li>\u9002\u5408\u8981\u6c42\u9ad8\u53ef\u9760\u6027\u7684\u5e94\u7528&#xff0c;\u5982HTTP\u3001FTP<\/li>\n<\/ul>\n<p>UDP\u534f\u8bae&#xff1a;<\/p>\n<ul>\n<li>\u4e0d\u53ef\u9760\u7684\u3001\u65e0\u8fde\u63a5\u7684\u4f20\u8f93\u534f\u8bae<\/li>\n<li>\u4e0d\u9700\u8981\u5efa\u7acb\u8fde\u63a5&#xff0c;\u4f20\u8f93\u901f\u5ea6\u5feb<\/li>\n<li>\u9002\u5408\u8981\u6c42\u9ad8\u4f20\u8f93\u901f\u5ea6\u7684\u5e94\u7528&#xff0c;\u5982\u89c6\u9891\u4f1a\u8bae\u3001\u6e38\u620f<\/li>\n<\/ul>\n<hr \/>\n<h3>\u4e09\u3001\u6a21\u57572&#xff1a;\u5957\u63a5\u5b57\u7f16\u7a0b\u57fa\u7840<\/h3>\n<h4>3.1 \u5b66\u4e60\u76ee\u6807<\/h4>\n<ul>\n<li>\u7406\u89e3\u5957\u63a5\u5b57\u7684\u672c\u8d28&#xff1a;\u7f51\u7edc\u901a\u4fe1\u7684\u7aef\u70b9&#xff0c;\u7528\u4e8e\u5b9e\u73b0\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u4e4b\u95f4\u7684\u901a\u4fe1<\/li>\n<li>\u638c\u63e1\u5957\u63a5\u5b57\u7f16\u7a0b\u7684\u57fa\u672c\u6b65\u9aa4&#xff1a;\u521b\u5efa\u5957\u63a5\u5b57\u3001\u7ed1\u5b9a\u5730\u5740\u3001\u76d1\u542c\u8fde\u63a5\u3001\u63a5\u53d7\u8fde\u63a5\u3001\u53d1\u9001\u548c\u63a5\u6536\u6570\u636e\u3001\u5173\u95ed\u5957\u63a5\u5b57<\/li>\n<li>\u638c\u63e1\u5957\u63a5\u5b57\u7f16\u7a0b\u7684\u907f\u5751\u6307\u5357&#xff1a;\u907f\u514d\u5730\u5740\u7ed1\u5b9a\u9519\u8bef\u3001\u907f\u514d\u8fde\u63a5\u5931\u8d25\u3001\u907f\u514d\u6570\u636e\u4f20\u8f93\u9519\u8bef<\/li>\n<li>\u907f\u5f00\u5957\u63a5\u5b57\u7f16\u7a0b\u4f7f\u7528\u76843\u5927\u5e38\u89c1\u5751<\/li>\n<\/ul>\n<h4>3.2 \u5957\u63a5\u5b57\u7f16\u7a0b\u7684\u57fa\u672c\u6b65\u9aa4<\/h4>\n<p>\u521b\u5efa\u5957\u63a5\u5b57&#xff1a;<\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">socket<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> domain<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> type<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> protocol<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u7ed1\u5b9a\u5730\u5740&#xff1a;<\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">bind<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> sockfd<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">const<\/span> <span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">sockaddr<\/span> <span class=\"token operator\">*<\/span>addr<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">socklen_t<\/span> addrlen<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u76d1\u542c\u8fde\u63a5&#xff1a;<\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">listen<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> sockfd<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> backlog<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u63a5\u53d7\u8fde\u63a5&#xff1a;<\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">accept<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> sockfd<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">sockaddr<\/span> <span class=\"token operator\">*<\/span>addr<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">socklen_t<\/span> <span class=\"token operator\">*<\/span>addrlen<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u53d1\u9001\u548c\u63a5\u6536\u6570\u636e&#xff1a;<\/p>\n<p><span class=\"token class-name\">ssize_t<\/span> <span class=\"token function\">send<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> sockfd<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">const<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token operator\">*<\/span>buf<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">size_t<\/span> len<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> flags<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token class-name\">ssize_t<\/span> <span class=\"token function\">recv<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> sockfd<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token operator\">*<\/span>buf<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">size_t<\/span> len<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> flags<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u5173\u95ed\u5957\u63a5\u5b57&#xff1a;<\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> sockfd<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<hr \/>\n<h3>\u56db\u3001\u6a21\u57573&#xff1a;\u670d\u52a1\u5668\/\u5ba2\u6237\u7aef\u901a\u4fe1\u5f00\u53d1<\/h3>\n<h4>4.1 \u5b66\u4e60\u76ee\u6807<\/h4>\n<ul>\n<li>\u7406\u89e3\u670d\u52a1\u5668\/\u5ba2\u6237\u7aef\u901a\u4fe1\u7684\u672c\u8d28&#xff1a;\u670d\u52a1\u5668\u76d1\u542c\u8fde\u63a5&#xff0c;\u5ba2\u6237\u7aef\u53d1\u8d77\u8fde\u63a5&#xff0c;\u5b9e\u73b0\u6570\u636e\u4f20\u8f93<\/li>\n<li>\u638c\u63e1\u670d\u52a1\u5668\/\u5ba2\u6237\u7aef\u901a\u4fe1\u7684\u5f00\u53d1\u65b9\u6cd5&#xff1a;\u4f7f\u7528TCP\u6216UDP\u534f\u8bae<\/li>\n<li>\u638c\u63e1\u670d\u52a1\u5668\/\u5ba2\u6237\u7aef\u901a\u4fe1\u7684\u907f\u5751\u6307\u5357&#xff1a;\u907f\u514d\u5e76\u53d1\u8fde\u63a5\u5904\u7406\u9519\u8bef\u3001\u907f\u514d\u6570\u636e\u4f20\u8f93\u9519\u8bef\u3001\u907f\u514d\u8fde\u63a5\u8d85\u65f6<\/li>\n<li>\u907f\u5f00\u670d\u52a1\u5668\/\u5ba2\u6237\u7aef\u901a\u4fe1\u4f7f\u7528\u76843\u5927\u5e38\u89c1\u5751<\/li>\n<\/ul>\n<h4>4.2 \u670d\u52a1\u5668\/\u5ba2\u6237\u7aef\u901a\u4fe1\u7684\u5f00\u53d1\u65b9\u6cd5<\/h4>\n<p>TCP\u670d\u52a1\u5668&#xff1a;<\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;stdio.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;stdlib.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;string.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;unistd.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;sys\/socket.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;netinet\/in.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;arpa\/inet.h&gt;<\/span><\/span><\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">PORT<\/span> <span class=\"token expression\"><span class=\"token number\">8080<\/span><\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">BUFFER_SIZE<\/span> <span class=\"token expression\"><span class=\"token number\">1024<\/span><\/span><\/span><\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> server_fd<span class=\"token punctuation\">,<\/span> new_socket<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">sockaddr_in<\/span> address<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> opt <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> addrlen <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span>address<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">char<\/span> buffer<span class=\"token punctuation\">[<\/span>BUFFER_SIZE<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span>hello <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;Hello from server&#034;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u521b\u5efa\u5957\u63a5\u5b57\u6587\u4ef6\u63cf\u8ff0\u7b26<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span>server_fd <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">socket<\/span><span class=\"token punctuation\">(<\/span>AF_INET<span class=\"token punctuation\">,<\/span> SOCK_STREAM<span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">perror<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;socket() error&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">exit<\/span><span class=\"token punctuation\">(<\/span>EXIT_FAILURE<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u8bbe\u7f6e\u5957\u63a5\u5b57\u9009\u9879<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">setsockopt<\/span><span class=\"token punctuation\">(<\/span>server_fd<span class=\"token punctuation\">,<\/span> SOL_SOCKET<span class=\"token punctuation\">,<\/span> SO_REUSEADDR <span class=\"token operator\">|<\/span> SO_REUSEPORT<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>opt<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span>opt<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">perror<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;setsockopt() error&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">exit<\/span><span class=\"token punctuation\">(<\/span>EXIT_FAILURE<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    address<span class=\"token punctuation\">.<\/span>sin_family <span class=\"token operator\">&#061;<\/span> AF_INET<span class=\"token punctuation\">;<\/span><br \/>\n    address<span class=\"token punctuation\">.<\/span>sin_addr<span class=\"token punctuation\">.<\/span>s_addr <span class=\"token operator\">&#061;<\/span> INADDR_ANY<span class=\"token punctuation\">;<\/span><br \/>\n    address<span class=\"token punctuation\">.<\/span>sin_port <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">htons<\/span><span class=\"token punctuation\">(<\/span>PORT<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u7ed1\u5b9a\u5957\u63a5\u5b57\u5230\u6307\u5b9a\u5730\u5740\u548c\u7aef\u53e3<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">bind<\/span><span class=\"token punctuation\">(<\/span>server_fd<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">sockaddr<\/span> <span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">&amp;<\/span>address<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span>address<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">perror<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;bind() error&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">exit<\/span><span class=\"token punctuation\">(<\/span>EXIT_FAILURE<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u76d1\u542c\u8fde\u63a5<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">listen<\/span><span class=\"token punctuation\">(<\/span>server_fd<span class=\"token punctuation\">,<\/span> <span class=\"token number\">3<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">perror<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;listen() error&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">exit<\/span><span class=\"token punctuation\">(<\/span>EXIT_FAILURE<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u63a5\u53d7\u8fde\u63a5<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span>new_socket <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">accept<\/span><span class=\"token punctuation\">(<\/span>server_fd<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">sockaddr<\/span> <span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">&amp;<\/span>address<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">socklen_t<\/span> <span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">&amp;<\/span>addrlen<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">perror<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;accept() error&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">exit<\/span><span class=\"token punctuation\">(<\/span>EXIT_FAILURE<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u63a5\u6536\u6570\u636e<\/span><br \/>\n    <span class=\"token function\">read<\/span><span class=\"token punctuation\">(<\/span>new_socket<span class=\"token punctuation\">,<\/span> buffer<span class=\"token punctuation\">,<\/span> BUFFER_SIZE<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6536\u5230\u5ba2\u6237\u7aef\u6d88\u606f&#xff1a;%s\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> buffer<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u53d1\u9001\u6570\u636e<\/span><br \/>\n    <span class=\"token function\">send<\/span><span class=\"token punctuation\">(<\/span>new_socket<span class=\"token punctuation\">,<\/span> hello<span class=\"token punctuation\">,<\/span> <span class=\"token function\">strlen<\/span><span class=\"token punctuation\">(<\/span>hello<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5411\u5ba2\u6237\u7aef\u53d1\u9001\u6d88\u606f&#xff1a;%s\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> hello<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u5173\u95ed\u5957\u63a5\u5b57<\/span><br \/>\n    <span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span>new_socket<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span>server_fd<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>TCP\u5ba2\u6237\u7aef&#xff1a;<\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;stdio.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;stdlib.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;string.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;unistd.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;sys\/socket.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;netinet\/in.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;arpa\/inet.h&gt;<\/span><\/span><\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">PORT<\/span> <span class=\"token expression\"><span class=\"token number\">8080<\/span><\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">BUFFER_SIZE<\/span> <span class=\"token expression\"><span class=\"token number\">1024<\/span><\/span><\/span><\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> sock <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">sockaddr_in<\/span> serv_addr<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">char<\/span> buffer<span class=\"token punctuation\">[<\/span>BUFFER_SIZE<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span>hello <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;Hello from client&#034;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u521b\u5efa\u5957\u63a5\u5b57\u6587\u4ef6\u63cf\u8ff0\u7b26<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span>sock <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">socket<\/span><span class=\"token punctuation\">(<\/span>AF_INET<span class=\"token punctuation\">,<\/span> SOCK_STREAM<span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">perror<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;socket() error&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">exit<\/span><span class=\"token punctuation\">(<\/span>EXIT_FAILURE<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    serv_addr<span class=\"token punctuation\">.<\/span>sin_family <span class=\"token operator\">&#061;<\/span> AF_INET<span class=\"token punctuation\">;<\/span><br \/>\n    serv_addr<span class=\"token punctuation\">.<\/span>sin_port <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">htons<\/span><span class=\"token punctuation\">(<\/span>PORT<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u5c06IPv4\u548cIPv6\u5730\u5740\u4ece\u6587\u672c\u8f6c\u6362\u4e3a\u4e8c\u8fdb\u5236\u5f62\u5f0f<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">inet_pton<\/span><span class=\"token punctuation\">(<\/span>AF_INET<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;127.0.0.1&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>serv_addr<span class=\"token punctuation\">.<\/span>sin_addr<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">perror<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u65e0\u6548\u7684\u5730\u5740\/\u5730\u5740\u4e0d\u53ef\u652f\u6301&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">exit<\/span><span class=\"token punctuation\">(<\/span>EXIT_FAILURE<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u8fde\u63a5\u670d\u52a1\u5668<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">connect<\/span><span class=\"token punctuation\">(<\/span>sock<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">sockaddr<\/span> <span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">&amp;<\/span>serv_addr<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span>serv_addr<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">perror<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u8fde\u63a5\u5931\u8d25&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">exit<\/span><span class=\"token punctuation\">(<\/span>EXIT_FAILURE<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u53d1\u9001\u6570\u636e<\/span><br \/>\n    <span class=\"token function\">send<\/span><span class=\"token punctuation\">(<\/span>sock<span class=\"token punctuation\">,<\/span> hello<span class=\"token punctuation\">,<\/span> <span class=\"token function\">strlen<\/span><span class=\"token punctuation\">(<\/span>hello<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5411\u670d\u52a1\u5668\u53d1\u9001\u6d88\u606f&#xff1a;%s\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> hello<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u63a5\u6536\u6570\u636e<\/span><br \/>\n    <span class=\"token function\">read<\/span><span class=\"token punctuation\">(<\/span>sock<span class=\"token punctuation\">,<\/span> buffer<span class=\"token punctuation\">,<\/span> BUFFER_SIZE<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6536\u5230\u670d\u52a1\u5668\u6d88\u606f&#xff1a;%s\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> buffer<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u5173\u95ed\u5957\u63a5\u5b57<\/span><br \/>\n    <span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span>sock<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>UDP\u670d\u52a1\u5668&#xff1a;<\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;stdio.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;stdlib.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;string.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;unistd.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;sys\/socket.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;netinet\/in.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;arpa\/inet.h&gt;<\/span><\/span><\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">PORT<\/span> <span class=\"token expression\"><span class=\"token number\">8080<\/span><\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">BUFFER_SIZE<\/span> <span class=\"token expression\"><span class=\"token number\">1024<\/span><\/span><\/span><\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> sockfd<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">sockaddr_in<\/span> servaddr<span class=\"token punctuation\">,<\/span> cliaddr<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> opt <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> len<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">char<\/span> buffer<span class=\"token punctuation\">[<\/span>BUFFER_SIZE<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span>hello <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;Hello from UDP server&#034;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u521b\u5efa\u5957\u63a5\u5b57\u6587\u4ef6\u63cf\u8ff0\u7b26<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span>sockfd <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">socket<\/span><span class=\"token punctuation\">(<\/span>AF_INET<span class=\"token punctuation\">,<\/span> SOCK_DGRAM<span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">perror<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;socket() error&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">exit<\/span><span class=\"token punctuation\">(<\/span>EXIT_FAILURE<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u8bbe\u7f6e\u5957\u63a5\u5b57\u9009\u9879<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">setsockopt<\/span><span class=\"token punctuation\">(<\/span>sockfd<span class=\"token punctuation\">,<\/span> SOL_SOCKET<span class=\"token punctuation\">,<\/span> SO_REUSEADDR <span class=\"token operator\">|<\/span> SO_REUSEPORT<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>opt<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span>opt<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">perror<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;setsockopt() error&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">exit<\/span><span class=\"token punctuation\">(<\/span>EXIT_FAILURE<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    servaddr<span class=\"token punctuation\">.<\/span>sin_family <span class=\"token operator\">&#061;<\/span> AF_INET<span class=\"token punctuation\">;<\/span><br \/>\n    servaddr<span class=\"token punctuation\">.<\/span>sin_addr<span class=\"token punctuation\">.<\/span>s_addr <span class=\"token operator\">&#061;<\/span> INADDR_ANY<span class=\"token punctuation\">;<\/span><br \/>\n    servaddr<span class=\"token punctuation\">.<\/span>sin_port <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">htons<\/span><span class=\"token punctuation\">(<\/span>PORT<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u7ed1\u5b9a\u5957\u63a5\u5b57\u5230\u6307\u5b9a\u5730\u5740\u548c\u7aef\u53e3<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">bind<\/span><span class=\"token punctuation\">(<\/span>sockfd<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">sockaddr<\/span> <span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">&amp;<\/span>servaddr<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span>servaddr<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">perror<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;bind() error&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">exit<\/span><span class=\"token punctuation\">(<\/span>EXIT_FAILURE<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    len <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span>cliaddr<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u63a5\u6536\u6570\u636e<\/span><br \/>\n    <span class=\"token function\">recvfrom<\/span><span class=\"token punctuation\">(<\/span>sockfd<span class=\"token punctuation\">,<\/span> buffer<span class=\"token punctuation\">,<\/span> BUFFER_SIZE<span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">sockaddr<\/span> <span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">&amp;<\/span>cliaddr<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6536\u5230\u5ba2\u6237\u7aef\u6d88\u606f&#xff1a;%s\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> buffer<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u53d1\u9001\u6570\u636e<\/span><br \/>\n    <span class=\"token function\">sendto<\/span><span class=\"token punctuation\">(<\/span>sockfd<span class=\"token punctuation\">,<\/span> hello<span class=\"token punctuation\">,<\/span> <span class=\"token function\">strlen<\/span><span class=\"token punctuation\">(<\/span>hello<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">sockaddr<\/span> <span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">&amp;<\/span>cliaddr<span class=\"token punctuation\">,<\/span> len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5411\u5ba2\u6237\u7aef\u53d1\u9001\u6d88\u606f&#xff1a;%s\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> hello<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u5173\u95ed\u5957\u63a5\u5b57<\/span><br \/>\n    <span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span>sockfd<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>UDP\u5ba2\u6237\u7aef&#xff1a;<\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;stdio.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;stdlib.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;string.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;unistd.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;sys\/socket.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;netinet\/in.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;arpa\/inet.h&gt;<\/span><\/span><\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">PORT<\/span> <span class=\"token expression\"><span class=\"token number\">8080<\/span><\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">BUFFER_SIZE<\/span> <span class=\"token expression\"><span class=\"token number\">1024<\/span><\/span><\/span><\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> sockfd<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">sockaddr_in<\/span> servaddr<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> len<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">char<\/span> buffer<span class=\"token punctuation\">[<\/span>BUFFER_SIZE<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span>hello <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;Hello from UDP client&#034;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u521b\u5efa\u5957\u63a5\u5b57\u6587\u4ef6\u63cf\u8ff0\u7b26<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span>sockfd <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">socket<\/span><span class=\"token punctuation\">(<\/span>AF_INET<span class=\"token punctuation\">,<\/span> SOCK_DGRAM<span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">perror<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;socket() error&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">exit<\/span><span class=\"token punctuation\">(<\/span>EXIT_FAILURE<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    servaddr<span class=\"token punctuation\">.<\/span>sin_family <span class=\"token operator\">&#061;<\/span> AF_INET<span class=\"token punctuation\">;<\/span><br \/>\n    servaddr<span class=\"token punctuation\">.<\/span>sin_port <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">htons<\/span><span class=\"token punctuation\">(<\/span>PORT<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    servaddr<span class=\"token punctuation\">.<\/span>sin_addr<span class=\"token punctuation\">.<\/span>s_addr <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">inet_addr<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;127.0.0.1&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    len <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span>servaddr<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u53d1\u9001\u6570\u636e<\/span><br \/>\n    <span class=\"token function\">sendto<\/span><span class=\"token punctuation\">(<\/span>sockfd<span class=\"token punctuation\">,<\/span> hello<span class=\"token punctuation\">,<\/span> <span class=\"token function\">strlen<\/span><span class=\"token punctuation\">(<\/span>hello<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">sockaddr<\/span> <span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">&amp;<\/span>servaddr<span class=\"token punctuation\">,<\/span> len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5411\u670d\u52a1\u5668\u53d1\u9001\u6d88\u606f&#xff1a;%s\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> hello<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u63a5\u6536\u6570\u636e<\/span><br \/>\n    <span class=\"token function\">recvfrom<\/span><span class=\"token punctuation\">(<\/span>sockfd<span class=\"token punctuation\">,<\/span> buffer<span class=\"token punctuation\">,<\/span> BUFFER_SIZE<span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">sockaddr<\/span> <span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">&amp;<\/span>servaddr<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6536\u5230\u670d\u52a1\u5668\u6d88\u606f&#xff1a;%s\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> buffer<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u5173\u95ed\u5957\u63a5\u5b57<\/span><br \/>\n    <span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span>sockfd<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<hr \/>\n<h3>\u4e94\u3001\u6a21\u57574&#xff1a;\u5b9e\u6218\u6848\u4f8b\u5206\u6790\u2014\u2014HTTP\u670d\u52a1\u5668\u5f00\u53d1<\/h3>\n<h4>5.1 \u5b66\u4e60\u76ee\u6807<\/h4>\n<ul>\n<li>\u638c\u63e1HTTP\u670d\u52a1\u5668\u5f00\u53d1&#xff1a;\u4f7f\u7528C\u8bed\u8a00\u5b9e\u73b0\u4e00\u4e2a\u7b80\u5355\u7684HTTP\u670d\u52a1\u5668&#xff0c;\u5904\u7406HTTP\u8bf7\u6c42\u548c\u54cd\u5e94<\/li>\n<li>\u5b66\u4f1a\u4f7f\u7528\u5957\u63a5\u5b57\u7f16\u7a0b\u548cHTTP\u534f\u8bae\u5b9e\u73b0\u7f51\u7edc\u5e94\u7528<\/li>\n<li>\u907f\u5f00\u5b9e\u6218\u6848\u4f8b\u4f7f\u7528\u76843\u5927\u5e38\u89c1\u5751<\/li>\n<\/ul>\n<h4>5.2 HTTP\u670d\u52a1\u5668\u5f00\u53d1<\/h4>\n<p>\u4ee3\u7801\u793a\u4f8b5&#xff1a;HTTP\u670d\u52a1\u5668<\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;stdio.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;stdlib.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;string.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;unistd.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;sys\/socket.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;netinet\/in.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;arpa\/inet.h&gt;<\/span><\/span><\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">PORT<\/span> <span class=\"token expression\"><span class=\"token number\">8080<\/span><\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">BUFFER_SIZE<\/span> <span class=\"token expression\"><span class=\"token number\">4096<\/span><\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">MAX_CLIENTS<\/span> <span class=\"token expression\"><span class=\"token number\">10<\/span><\/span><\/span><\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">handle_client<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> new_socket<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">char<\/span> buffer<span class=\"token punctuation\">[<\/span>BUFFER_SIZE<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span>response <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;HTTP\/1.1 200 OK\\\\r\\\\nContent-Type: text\/html\\\\r\\\\nContent-Length: 12\\\\r\\\\n\\\\r\\\\nHello, World!&#034;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u63a5\u6536HTTP\u8bf7\u6c42<\/span><br \/>\n    <span class=\"token function\">read<\/span><span class=\"token punctuation\">(<\/span>new_socket<span class=\"token punctuation\">,<\/span> buffer<span class=\"token punctuation\">,<\/span> BUFFER_SIZE<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6536\u5230HTTP\u8bf7\u6c42&#xff1a;\\\\n%s\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> buffer<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u53d1\u9001HTTP\u54cd\u5e94<\/span><br \/>\n    <span class=\"token function\">send<\/span><span class=\"token punctuation\">(<\/span>new_socket<span class=\"token punctuation\">,<\/span> response<span class=\"token punctuation\">,<\/span> <span class=\"token function\">strlen<\/span><span class=\"token punctuation\">(<\/span>response<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5411\u5ba2\u6237\u7aef\u53d1\u9001\u54cd\u5e94&#xff1a;\\\\n%s\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> response<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u5173\u95ed\u5957\u63a5\u5b57<\/span><br \/>\n    <span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span>new_socket<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> server_fd<span class=\"token punctuation\">,<\/span> new_socket<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">sockaddr_in<\/span> address<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> opt <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> addrlen <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span>address<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> clients<span class=\"token punctuation\">[<\/span>MAX_CLIENTS<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> max_clients <span class=\"token operator\">&#061;<\/span> MAX_CLIENTS<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> i<span class=\"token punctuation\">,<\/span> j<span class=\"token punctuation\">,<\/span> valread<span class=\"token punctuation\">,<\/span> sd<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> activity<span class=\"token punctuation\">,<\/span> max_sd<span class=\"token punctuation\">;<\/span><br \/>\n    fd_set readfds<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">char<\/span> buffer<span class=\"token punctuation\">[<\/span>BUFFER_SIZE<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u521d\u59cb\u5316\u5ba2\u6237\u7aef\u6570\u7ec4<\/span><br \/>\n    <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span>i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> max_clients<span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        clients<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u521b\u5efa\u5957\u63a5\u5b57\u6587\u4ef6\u63cf\u8ff0\u7b26<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span>server_fd <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">socket<\/span><span class=\"token punctuation\">(<\/span>AF_INET<span class=\"token punctuation\">,<\/span> SOCK_STREAM<span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">perror<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;socket() error&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">exit<\/span><span class=\"token punctuation\">(<\/span>EXIT_FAILURE<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u8bbe\u7f6e\u5957\u63a5\u5b57\u9009\u9879<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">setsockopt<\/span><span class=\"token punctuation\">(<\/span>server_fd<span class=\"token punctuation\">,<\/span> SOL_SOCKET<span class=\"token punctuation\">,<\/span> SO_REUSEADDR <span class=\"token operator\">|<\/span> SO_REUSEPORT<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>opt<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span>opt<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">perror<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;setsockopt() error&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">exit<\/span><span class=\"token punctuation\">(<\/span>EXIT_FAILURE<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    address<span class=\"token punctuation\">.<\/span>sin_family <span class=\"token operator\">&#061;<\/span> AF_INET<span class=\"token punctuation\">;<\/span><br \/>\n    address<span class=\"token punctuation\">.<\/span>sin_addr<span class=\"token punctuation\">.<\/span>s_addr <span class=\"token operator\">&#061;<\/span> INADDR_ANY<span class=\"token punctuation\">;<\/span><br \/>\n    address<span class=\"token punctuation\">.<\/span>sin_port <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">htons<\/span><span class=\"token punctuation\">(<\/span>PORT<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u7ed1\u5b9a\u5957\u63a5\u5b57\u5230\u6307\u5b9a\u5730\u5740\u548c\u7aef\u53e3<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">bind<\/span><span class=\"token punctuation\">(<\/span>server_fd<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">sockaddr<\/span> <span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">&amp;<\/span>address<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span>address<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">perror<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;bind() error&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">exit<\/span><span class=\"token punctuation\">(<\/span>EXIT_FAILURE<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u76d1\u542c\u8fde\u63a5<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">listen<\/span><span class=\"token punctuation\">(<\/span>server_fd<span class=\"token punctuation\">,<\/span> <span class=\"token number\">3<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">perror<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;listen() error&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">exit<\/span><span class=\"token punctuation\">(<\/span>EXIT_FAILURE<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;HTTP\u670d\u52a1\u5668\u542f\u52a8\u6210\u529f&#xff0c;\u76d1\u542c\u7aef\u53e3&#xff1a;%d\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> PORT<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u6e05\u7a7a\u6587\u4ef6\u63cf\u8ff0\u7b26\u96c6\u5408<\/span><br \/>\n        <span class=\"token function\">FD_ZERO<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>readfds<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u6dfb\u52a0\u670d\u52a1\u5668\u5957\u63a5\u5b57\u5230\u96c6\u5408<\/span><br \/>\n        <span class=\"token function\">FD_SET<\/span><span class=\"token punctuation\">(<\/span>server_fd<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>readfds<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        max_sd <span class=\"token operator\">&#061;<\/span> server_fd<span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u6dfb\u52a0\u5ba2\u6237\u7aef\u5957\u63a5\u5b57\u5230\u96c6\u5408<\/span><br \/>\n        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span>i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> max_clients<span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            sd <span class=\"token operator\">&#061;<\/span> clients<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>sd <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token function\">FD_SET<\/span><span class=\"token punctuation\">(<\/span>sd<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>readfds<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><\/p>\n<p>            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>sd <span class=\"token operator\">&gt;<\/span> max_sd<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                max_sd <span class=\"token operator\">&#061;<\/span> sd<span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u7b49\u5f85\u6d3b\u52a8<\/span><br \/>\n        activity <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">select<\/span><span class=\"token punctuation\">(<\/span>max_sd <span class=\"token operator\">&#043;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>readfds<span class=\"token punctuation\">,<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>activity <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token function\">perror<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;select() error&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u5982\u679c\u670d\u52a1\u5668\u5957\u63a5\u5b57\u6709\u6d3b\u52a8&#xff0c;\u8bf4\u660e\u6709\u65b0\u8fde\u63a5<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">FD_ISSET<\/span><span class=\"token punctuation\">(<\/span>server_fd<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>readfds<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span>new_socket <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">accept<\/span><span class=\"token punctuation\">(<\/span>server_fd<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">sockaddr<\/span> <span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">&amp;<\/span>address<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">socklen_t<\/span> <span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">&amp;<\/span>addrlen<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token function\">perror<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;accept() error&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token function\">exit<\/span><span class=\"token punctuation\">(<\/span>EXIT_FAILURE<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><\/p>\n<p>            <span class=\"token comment\">\/\/ \u6253\u5370\u5ba2\u6237\u7aef\u4fe1\u606f<\/span><br \/>\n            <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u65b0\u8fde\u63a5&#xff1a;\u5957\u63a5\u5b57\u6587\u4ef6\u63cf\u8ff0\u7b26&#061;%d&#xff0c;IP&#061;%s&#xff0c;\u7aef\u53e3&#061;%d\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n                   new_socket<span class=\"token punctuation\">,<\/span> <span class=\"token function\">inet_ntoa<\/span><span class=\"token punctuation\">(<\/span>address<span class=\"token punctuation\">.<\/span>sin_addr<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">ntohs<\/span><span class=\"token punctuation\">(<\/span>address<span class=\"token punctuation\">.<\/span>sin_port<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>            <span class=\"token comment\">\/\/ \u5c06\u65b0\u5957\u63a5\u5b57\u6587\u4ef6\u63cf\u8ff0\u7b26\u6dfb\u52a0\u5230\u6570\u7ec4<\/span><br \/>\n            <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span>i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> max_clients<span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>clients<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                    clients<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> new_socket<span class=\"token punctuation\">;<\/span><br \/>\n                    <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token punctuation\">}<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><\/p>\n<p>            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>i <span class=\"token operator\">&#061;&#061;<\/span> max_clients<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5ba2\u6237\u7aef\u6570\u91cf\u5df2\u8fbe\u4e0a\u9650&#xff01;\\\\n&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u5904\u7406\u5ba2\u6237\u7aef\u6d3b\u52a8<\/span><br \/>\n        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span>i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> max_clients<span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            sd <span class=\"token operator\">&#061;<\/span> clients<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">FD_ISSET<\/span><span class=\"token punctuation\">(<\/span>sd<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>readfds<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                valread <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">read<\/span><span class=\"token punctuation\">(<\/span>sd<span class=\"token punctuation\">,<\/span> buffer<span class=\"token punctuation\">,<\/span> BUFFER_SIZE<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>                <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>valread <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                    <span class=\"token comment\">\/\/ \u5ba2\u6237\u7aef\u5173\u95ed\u8fde\u63a5<\/span><br \/>\n                    <span class=\"token function\">getpeername<\/span><span class=\"token punctuation\">(<\/span>sd<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">sockaddr<\/span> <span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">&amp;<\/span>address<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">socklen_t<\/span> <span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">&amp;<\/span>addrlen<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5ba2\u6237\u7aef\u65ad\u5f00\u8fde\u63a5&#xff1a;IP&#061;%s&#xff0c;\u7aef\u53e3&#061;%d\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n                           <span class=\"token function\">inet_ntoa<\/span><span class=\"token punctuation\">(<\/span>address<span class=\"token punctuation\">.<\/span>sin_addr<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">ntohs<\/span><span class=\"token punctuation\">(<\/span>address<span class=\"token punctuation\">.<\/span>sin_port<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>                    <span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span>sd<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    clients<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                    <span class=\"token comment\">\/\/ \u5904\u7406HTTP\u8bf7\u6c42<\/span><br \/>\n                    buffer<span class=\"token punctuation\">[<\/span>valread<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token char\">&#039;\\\\0&#039;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    <span class=\"token function\">handle_client<\/span><span class=\"token punctuation\">(<\/span>sd<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>                    <span class=\"token comment\">\/\/ \u5173\u95ed\u5957\u63a5\u5b57<\/span><br \/>\n                    <span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span>sd<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    clients<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token punctuation\">}<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<hr \/>\n<h3>\u516d\u3001\u672c\u7ae0\u603b\u7ed3\u4e0e\u8bfe\u540e\u7ec3\u4e60<\/h3>\n<h4>6.1 \u603b\u7ed3<\/h4>\n<p>\u2705 TCP\/IP\u534f\u8bae\u6808&#xff1a;\u7528\u4e8e\u7f51\u7edc\u901a\u4fe1\u7684\u534f\u8bae\u96c6\u5408&#xff0c;\u5206\u4e3a\u5e94\u7528\u5c42\u3001\u4f20\u8f93\u5c42\u3001\u7f51\u7edc\u5c42\u3001\u6570\u636e\u94fe\u8def\u5c42<br \/>\n\u2705 \u5957\u63a5\u5b57\u7f16\u7a0b&#xff1a;\u7f51\u7edc\u901a\u4fe1\u7684\u7aef\u70b9&#xff0c;\u7528\u4e8e\u5b9e\u73b0\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u4e4b\u95f4\u7684\u901a\u4fe1<br \/>\n\u2705 \u670d\u52a1\u5668\/\u5ba2\u6237\u7aef\u901a\u4fe1&#xff1a;\u670d\u52a1\u5668\u76d1\u542c\u8fde\u63a5&#xff0c;\u5ba2\u6237\u7aef\u53d1\u8d77\u8fde\u63a5&#xff0c;\u5b9e\u73b0\u6570\u636e\u4f20\u8f93<br \/>\n\u2705 \u5b9e\u6218\u6848\u4f8b\u5206\u6790&#xff1a;HTTP\u670d\u52a1\u5668\u5f00\u53d1&#xff0c;\u4f7f\u7528\u5957\u63a5\u5b57\u7f16\u7a0b\u548cHTTP\u534f\u8bae\u5b9e\u73b0\u7f51\u7edc\u5e94\u7528<\/p>\n<h4>6.2 \u8bfe\u540e\u7ec3\u4e60<\/h4>\n<li>\u7f16\u5199\u7a0b\u5e8f&#xff1a;\u4f7f\u7528TCP\u534f\u8bae\u5b9e\u73b0\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u901a\u4fe1<\/li>\n<li>\u7f16\u5199\u7a0b\u5e8f&#xff1a;\u4f7f\u7528UDP\u534f\u8bae\u5b9e\u73b0\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u901a\u4fe1<\/li>\n<li>\u7f16\u5199\u7a0b\u5e8f&#xff1a;\u4f7f\u7528HTTP\u534f\u8bae\u5b9e\u73b0\u7b80\u5355\u7684Web\u670d\u52a1\u5668<\/li>\n<li>\u7f16\u5199\u7a0b\u5e8f&#xff1a;\u4f7f\u7528FTP\u534f\u8bae\u5b9e\u73b0\u6587\u4ef6\u4f20\u8f93<\/li>\n<li>\u7f16\u5199\u7a0b\u5e8f&#xff1a;\u4f7f\u7528SMTP\u534f\u8bae\u5b9e\u73b0\u90ae\u4ef6\u53d1\u9001<\/li>\n<li>\u7f16\u5199\u7a0b\u5e8f&#xff1a;\u4f7f\u7528POP3\u534f\u8bae\u5b9e\u73b0\u90ae\u4ef6\u63a5\u6536<\/li>\n<li>\u7f16\u5199\u7a0b\u5e8f&#xff1a;\u4f7f\u7528DNS\u534f\u8bae\u5b9e\u73b0\u57df\u540d\u89e3\u6790<\/li>\n<li>\u7f16\u5199\u7a0b\u5e8f&#xff1a;\u4f7f\u7528ICMP\u534f\u8bae\u5b9e\u73b0Ping\u529f\u80fd<\/li>\n<li>\u7f16\u5199\u7a0b\u5e8f&#xff1a;\u4f7f\u7528ARP\u534f\u8bae\u5b9e\u73b0\u5730\u5740\u89e3\u6790<\/li>\n<li>\u7f16\u5199\u7a0b\u5e8f&#xff1a;\u4f7f\u7528SSL\/TLS\u534f\u8bae\u5b9e\u73b0\u5b89\u5168\u901a\u4fe1<\/li>\n","protected":false},"excerpt":{"rendered":"<p>C\u8bed\u8a00\u7f51\u7edc\u7f16\u7a0b&#xff1a;TCP\/IP\u534f\u8bae\u6808\u3001\u5957\u63a5\u5b57\u3001\u670d\u52a1\u5668\/\u5ba2\u6237\u7aef\u901a\u4fe1\u6df1\u5ea6\u89e3\u6790\u4e00\u3001\u524d\u8a00&#xff1a;\u4e3a\u4ec0\u4e48\u7f51\u7edc\u7f16\u7a0b\u662fC\u8bed\u8a00\u5f00\u53d1\u7684\u91cd\u8981\u6280\u80fd&#xff1f;<br \/>\n\u5b66\u4e60\u76ee\u6807<br \/>\n\u7406\u89e3\u7f51\u7edc\u7f16\u7a0b\u7684\u672c\u8d28&#xff1a;\u7f16\u5199\u7a0b\u5e8f\u5b9e\u73b0\u4e0d\u540c\u8bbe\u5907\u4e4b\u95f4\u7684\u7f51\u7edc\u901a\u4fe1\u660e\u786e\u7f51\u7edc\u7f16\u7a0b\u7684\u91cd\u8981\u6027&#xff1a;\u652f\u6491\u4e92\u8054\u7f51\u3001\u7269\u8054\u7f51\u3001\u4e91\u8ba1\u7b97\u7b49\u5e94\u7528\u7684\u57fa\u7840\u638c\u63e1\u672c\u7ae0\u5b66\u4e60\u91cd\u70b9&#xff1a;TCP\/IP\u534f\u8bae\u6808\u3001\u5957\u63a5\u5b57\u3001\u670d\u52a1\u5668\/\u5ba2\u6237\u7aef\u901a\u4fe1\u7684\u5f00\u53d1\u65b9\u6cd5\u3001\u907f\u5751\u6307\u5357\u3001\u5b9e\u6218\u6848\u4f8b\u5206\u6790\u5b66\u4f1a\u4f7f\u7528C\u8bed\u8a00\u5f00\u53d1\u7f51\u7edc\u5e94\u7528&#xff0c;\u5b9e\u73b0\u6570\u636e\u4f20\u8f93<\/p>\n","protected":false},"author":2,"featured_media":81342,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[174,205,78],"topic":[],"class_list":["post-81343","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-c","tag-tcp-ip","tag-78"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>C\u8bed\u8a00\u7f51\u7edc\u7f16\u7a0b\uff1aTCP\/IP\u534f\u8bae\u6808\u3001\u5957\u63a5\u5b57\u3001\u670d\u52a1\u5668\/\u5ba2\u6237\u7aef\u901a\u4fe1\u6df1\u5ea6\u89e3\u6790 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/81343.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"C\u8bed\u8a00\u7f51\u7edc\u7f16\u7a0b\uff1aTCP\/IP\u534f\u8bae\u6808\u3001\u5957\u63a5\u5b57\u3001\u670d\u52a1\u5668\/\u5ba2\u6237\u7aef\u901a\u4fe1\u6df1\u5ea6\u89e3\u6790 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"C\u8bed\u8a00\u7f51\u7edc\u7f16\u7a0b&#xff1a;TCP\/IP\u534f\u8bae\u6808\u3001\u5957\u63a5\u5b57\u3001\u670d\u52a1\u5668\/\u5ba2\u6237\u7aef\u901a\u4fe1\u6df1\u5ea6\u89e3\u6790\u4e00\u3001\u524d\u8a00&#xff1a;\u4e3a\u4ec0\u4e48\u7f51\u7edc\u7f16\u7a0b\u662fC\u8bed\u8a00\u5f00\u53d1\u7684\u91cd\u8981\u6280\u80fd&#xff1f; \u5b66\u4e60\u76ee\u6807 \u7406\u89e3\u7f51\u7edc\u7f16\u7a0b\u7684\u672c\u8d28&#xff1a;\u7f16\u5199\u7a0b\u5e8f\u5b9e\u73b0\u4e0d\u540c\u8bbe\u5907\u4e4b\u95f4\u7684\u7f51\u7edc\u901a\u4fe1\u660e\u786e\u7f51\u7edc\u7f16\u7a0b\u7684\u91cd\u8981\u6027&#xff1a;\u652f\u6491\u4e92\u8054\u7f51\u3001\u7269\u8054\u7f51\u3001\u4e91\u8ba1\u7b97\u7b49\u5e94\u7528\u7684\u57fa\u7840\u638c\u63e1\u672c\u7ae0\u5b66\u4e60\u91cd\u70b9&#xff1a;TCP\/IP\u534f\u8bae\u6808\u3001\u5957\u63a5\u5b57\u3001\u670d\u52a1\u5668\/\u5ba2\u6237\u7aef\u901a\u4fe1\u7684\u5f00\u53d1\u65b9\u6cd5\u3001\u907f\u5751\u6307\u5357\u3001\u5b9e\u6218\u6848\u4f8b\u5206\u6790\u5b66\u4f1a\u4f7f\u7528C\u8bed\u8a00\u5f00\u53d1\u7f51\u7edc\u5e94\u7528&#xff0c;\u5b9e\u73b0\u6570\u636e\u4f20\u8f93\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/81343.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2026-07-24T17:21:10+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260724172108-6a639f04bfb19.png\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"7 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/81343.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/81343.html\",\"name\":\"C\u8bed\u8a00\u7f51\u7edc\u7f16\u7a0b\uff1aTCP\/IP\u534f\u8bae\u6808\u3001\u5957\u63a5\u5b57\u3001\u670d\u52a1\u5668\/\u5ba2\u6237\u7aef\u901a\u4fe1\u6df1\u5ea6\u89e3\u6790 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"isPartOf\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\"},\"datePublished\":\"2026-07-24T17:21:10+00:00\",\"dateModified\":\"2026-07-24T17:21:10+00:00\",\"author\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/81343.html#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.wsisp.com\/helps\/81343.html\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/81343.html#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.wsisp.com\/helps\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"C\u8bed\u8a00\u7f51\u7edc\u7f16\u7a0b\uff1aTCP\/IP\u534f\u8bae\u6808\u3001\u5957\u63a5\u5b57\u3001\u670d\u52a1\u5668\/\u5ba2\u6237\u7aef\u901a\u4fe1\u6df1\u5ea6\u89e3\u6790\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\",\"url\":\"https:\/\/www.wsisp.com\/helps\/\",\"name\":\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"description\":\"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"zh-Hans\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\",\"name\":\"admin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery\",\"contentUrl\":\"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery\",\"caption\":\"admin\"},\"sameAs\":[\"http:\/\/wp.wsisp.com\"],\"url\":\"https:\/\/www.wsisp.com\/helps\/author\/admin\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"C\u8bed\u8a00\u7f51\u7edc\u7f16\u7a0b\uff1aTCP\/IP\u534f\u8bae\u6808\u3001\u5957\u63a5\u5b57\u3001\u670d\u52a1\u5668\/\u5ba2\u6237\u7aef\u901a\u4fe1\u6df1\u5ea6\u89e3\u6790 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.wsisp.com\/helps\/81343.html","og_locale":"zh_CN","og_type":"article","og_title":"C\u8bed\u8a00\u7f51\u7edc\u7f16\u7a0b\uff1aTCP\/IP\u534f\u8bae\u6808\u3001\u5957\u63a5\u5b57\u3001\u670d\u52a1\u5668\/\u5ba2\u6237\u7aef\u901a\u4fe1\u6df1\u5ea6\u89e3\u6790 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","og_description":"C\u8bed\u8a00\u7f51\u7edc\u7f16\u7a0b&#xff1a;TCP\/IP\u534f\u8bae\u6808\u3001\u5957\u63a5\u5b57\u3001\u670d\u52a1\u5668\/\u5ba2\u6237\u7aef\u901a\u4fe1\u6df1\u5ea6\u89e3\u6790\u4e00\u3001\u524d\u8a00&#xff1a;\u4e3a\u4ec0\u4e48\u7f51\u7edc\u7f16\u7a0b\u662fC\u8bed\u8a00\u5f00\u53d1\u7684\u91cd\u8981\u6280\u80fd&#xff1f; \u5b66\u4e60\u76ee\u6807 \u7406\u89e3\u7f51\u7edc\u7f16\u7a0b\u7684\u672c\u8d28&#xff1a;\u7f16\u5199\u7a0b\u5e8f\u5b9e\u73b0\u4e0d\u540c\u8bbe\u5907\u4e4b\u95f4\u7684\u7f51\u7edc\u901a\u4fe1\u660e\u786e\u7f51\u7edc\u7f16\u7a0b\u7684\u91cd\u8981\u6027&#xff1a;\u652f\u6491\u4e92\u8054\u7f51\u3001\u7269\u8054\u7f51\u3001\u4e91\u8ba1\u7b97\u7b49\u5e94\u7528\u7684\u57fa\u7840\u638c\u63e1\u672c\u7ae0\u5b66\u4e60\u91cd\u70b9&#xff1a;TCP\/IP\u534f\u8bae\u6808\u3001\u5957\u63a5\u5b57\u3001\u670d\u52a1\u5668\/\u5ba2\u6237\u7aef\u901a\u4fe1\u7684\u5f00\u53d1\u65b9\u6cd5\u3001\u907f\u5751\u6307\u5357\u3001\u5b9e\u6218\u6848\u4f8b\u5206\u6790\u5b66\u4f1a\u4f7f\u7528C\u8bed\u8a00\u5f00\u53d1\u7f51\u7edc\u5e94\u7528&#xff0c;\u5b9e\u73b0\u6570\u636e\u4f20\u8f93","og_url":"https:\/\/www.wsisp.com\/helps\/81343.html","og_site_name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","article_published_time":"2026-07-24T17:21:10+00:00","og_image":[{"url":"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260724172108-6a639f04bfb19.png"}],"author":"admin","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"admin","\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4":"7 \u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.wsisp.com\/helps\/81343.html","url":"https:\/\/www.wsisp.com\/helps\/81343.html","name":"C\u8bed\u8a00\u7f51\u7edc\u7f16\u7a0b\uff1aTCP\/IP\u534f\u8bae\u6808\u3001\u5957\u63a5\u5b57\u3001\u670d\u52a1\u5668\/\u5ba2\u6237\u7aef\u901a\u4fe1\u6df1\u5ea6\u89e3\u6790 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","isPartOf":{"@id":"https:\/\/www.wsisp.com\/helps\/#website"},"datePublished":"2026-07-24T17:21:10+00:00","dateModified":"2026-07-24T17:21:10+00:00","author":{"@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41"},"breadcrumb":{"@id":"https:\/\/www.wsisp.com\/helps\/81343.html#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.wsisp.com\/helps\/81343.html"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.wsisp.com\/helps\/81343.html#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.wsisp.com\/helps"},{"@type":"ListItem","position":2,"name":"C\u8bed\u8a00\u7f51\u7edc\u7f16\u7a0b\uff1aTCP\/IP\u534f\u8bae\u6808\u3001\u5957\u63a5\u5b57\u3001\u670d\u52a1\u5668\/\u5ba2\u6237\u7aef\u901a\u4fe1\u6df1\u5ea6\u89e3\u6790"}]},{"@type":"WebSite","@id":"https:\/\/www.wsisp.com\/helps\/#website","url":"https:\/\/www.wsisp.com\/helps\/","name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","description":"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"zh-Hans"},{"@type":"Person","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41","name":"admin","image":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/","url":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","contentUrl":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","caption":"admin"},"sameAs":["http:\/\/wp.wsisp.com"],"url":"https:\/\/www.wsisp.com\/helps\/author\/admin"}]}},"_links":{"self":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/81343","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/comments?post=81343"}],"version-history":[{"count":0,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/81343\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/media\/81342"}],"wp:attachment":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/media?parent=81343"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/categories?post=81343"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/tags?post=81343"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/topic?post=81343"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}