{"id":43713,"date":"2025-06-14T08:10:56","date_gmt":"2025-06-14T00:10:56","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/43713.html"},"modified":"2025-06-14T08:10:56","modified_gmt":"2025-06-14T00:10:56","slug":"%e4%bb%8b%e7%bb%8d%e4%b8%80%e4%b8%8b-tcp%e6%96%b9%e5%bc%8f%e7%a8%8b%e5%ba%8f%e7%9a%84%e9%80%9a%e8%ae%af%ef%bc%8c%e6%9c%8d%e5%8a%a1%e5%99%a8%e6%9c%ba%e4%b8%8e%e5%ae%a2%e6%88%b7%e6%9c%ba","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/43713.html","title":{"rendered":"\u4ecb\u7ecd\u4e00\u4e0b TCP\u65b9\u5f0f\u7a0b\u5e8f\u7684\u901a\u8baf\uff0c\u670d\u52a1\u5668\u673a\u4e0e\u5ba2\u6237\u673a"},"content":{"rendered":"<h2>TCP\u901a\u4fe1\u65b9\u5f0f&#xff1a;\u670d\u52a1\u5668\u4e0e\u5ba2\u6237\u673a\u901a\u4fe1\u8be6\u89e3<\/h2>\n<p>TCP(\u4f20\u8f93\u63a7\u5236\u534f\u8bae)\u662f\u4e00\u79cd\u9762\u5411\u8fde\u63a5\u7684\u3001\u53ef\u9760\u7684\u3001\u57fa\u4e8e\u5b57\u8282\u6d41\u7684\u4f20\u8f93\u5c42\u901a\u4fe1\u534f\u8bae\u3002\u4e0b\u9762\u6211\u5c06\u8be6\u7ec6\u4ecb\u7ecdTCP\u65b9\u5f0f\u4e0b\u670d\u52a1\u5668\u4e0e\u5ba2\u6237\u673a\u7684\u901a\u4fe1\u8fc7\u7a0b\u3002<\/p>\n<h3>\u57fa\u672c\u6982\u5ff5<\/h3>\n<li>\n<p>TCP\u7279\u70b9&#xff1a;<\/p>\n<ul>\n<li>\u9762\u5411\u8fde\u63a5&#xff1a;\u901a\u4fe1\u524d\u9700\u5efa\u7acb\u8fde\u63a5<\/li>\n<li>\u53ef\u9760\u4f20\u8f93&#xff1a;\u901a\u8fc7\u786e\u8ba4\u3001\u91cd\u4f20\u7b49\u673a\u5236\u4fdd\u8bc1\u6570\u636e\u6b63\u786e\u5230\u8fbe<\/li>\n<li>\u6709\u5e8f\u4f20\u8f93&#xff1a;\u6570\u636e\u6309\u53d1\u9001\u987a\u5e8f\u5230\u8fbe<\/li>\n<li>\u6d41\u91cf\u63a7\u5236&#xff1a;\u9632\u6b62\u53d1\u9001\u65b9\u8fc7\u5feb\u5bfc\u81f4\u63a5\u6536\u65b9\u65e0\u6cd5\u5904\u7406<\/li>\n<li>\u62e5\u585e\u63a7\u5236&#xff1a;\u9632\u6b62\u7f51\u7edc\u8fc7\u8f7d<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u901a\u4fe1\u89d2\u8272&#xff1a;<\/p>\n<ul>\n<li>\u670d\u52a1\u5668&#xff1a;\u88ab\u52a8\u7b49\u5f85\u8fde\u63a5\u7684\u4e00\u65b9&#xff0c;\u901a\u5e38\u6709\u56fa\u5b9aIP\u548c\u7aef\u53e3<\/li>\n<li>\u5ba2\u6237\u673a&#xff1a;\u4e3b\u52a8\u53d1\u8d77\u8fde\u63a5\u7684\u4e00\u65b9<\/li>\n<\/ul>\n<\/li>\n<h3>\u901a\u4fe1\u6d41\u7a0b<\/h3>\n<h4>\u670d\u52a1\u5668\u7aef\u6d41\u7a0b<\/h4>\n<li>\n<p>\u521b\u5efa\u5957\u63a5\u5b57(Socket)<\/p>\n<p> server_socket <span class=\"token operator\">&#061;<\/span> socket<span class=\"token punctuation\">.<\/span>socket<span class=\"token punctuation\">(<\/span>socket<span class=\"token punctuation\">.<\/span>AF_INET<span class=\"token punctuation\">,<\/span> socket<span class=\"token punctuation\">.<\/span>SOCK_STREAM<span class=\"token punctuation\">)<\/span>\n <\/li>\n<li>\n<p>\u7ed1\u5b9aIP\u548c\u7aef\u53e3(Bind)<\/p>\n<p> server_socket<span class=\"token punctuation\">.<\/span>bind<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;0.0.0.0&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">8888<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u7ed1\u5b9a\u6240\u6709\u53ef\u7528IP&#xff0c;\u7aef\u53e38888<\/span>\n <\/li>\n<li>\n<p>\u76d1\u542c\u8fde\u63a5(Listen)<\/p>\n<p> server_socket<span class=\"token punctuation\">.<\/span>listen<span class=\"token punctuation\">(<\/span><span class=\"token number\">5<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u8bbe\u7f6e\u6700\u5927\u7b49\u5f85\u8fde\u63a5\u6570<\/span>\n <\/li>\n<li>\n<p>\u63a5\u53d7\u8fde\u63a5(Accept)<\/p>\n<p> client_socket<span class=\"token punctuation\">,<\/span> client_address <span class=\"token operator\">&#061;<\/span> server_socket<span class=\"token punctuation\">.<\/span>accept<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u963b\u585e\u7b49\u5f85\u5ba2\u6237\u7aef\u8fde\u63a5<\/span>\n <\/li>\n<li>\n<p>\u63a5\u6536\/\u53d1\u9001\u6570\u636e<\/p>\n<p> data <span class=\"token operator\">&#061;<\/span> client_socket<span class=\"token punctuation\">.<\/span>recv<span class=\"token punctuation\">(<\/span><span class=\"token number\">1024<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u63a5\u6536\u6570\u636e<\/span><br \/>\nclient_socket<span class=\"token punctuation\">.<\/span>send<span class=\"token punctuation\">(<\/span><span class=\"token string\">b&#034;Response&#034;<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u53d1\u9001\u6570\u636e<\/span>\n <\/li>\n<li>\n<p>\u5173\u95ed\u8fde\u63a5<\/p>\n<p> client_socket<span class=\"token punctuation\">.<\/span>close<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\nserver_socket<span class=\"token punctuation\">.<\/span>close<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\n <\/li>\n<h4>\u5ba2\u6237\u7aef\u6d41\u7a0b<\/h4>\n<li>\n<p>\u521b\u5efa\u5957\u63a5\u5b57<\/p>\n<p> client_socket <span class=\"token operator\">&#061;<\/span> socket<span class=\"token punctuation\">.<\/span>socket<span class=\"token punctuation\">(<\/span>socket<span class=\"token punctuation\">.<\/span>AF_INET<span class=\"token punctuation\">,<\/span> socket<span class=\"token punctuation\">.<\/span>SOCK_STREAM<span class=\"token punctuation\">)<\/span>\n <\/li>\n<li>\n<p>\u8fde\u63a5\u670d\u52a1\u5668(Connect)<\/p>\n<p> client_socket<span class=\"token punctuation\">.<\/span>connect<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;server_ip&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">8888<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u8fde\u63a5\u670d\u52a1\u5668IP\u548c\u7aef\u53e3<\/span>\n <\/li>\n<li>\n<p>\u53d1\u9001\/\u63a5\u6536\u6570\u636e<\/p>\n<p> client_socket<span class=\"token punctuation\">.<\/span>send<span class=\"token punctuation\">(<\/span><span class=\"token string\">b&#034;Hello Server&#034;<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u53d1\u9001\u6570\u636e<\/span><br \/>\ndata <span class=\"token operator\">&#061;<\/span> client_socket<span class=\"token punctuation\">.<\/span>recv<span class=\"token punctuation\">(<\/span><span class=\"token number\">1024<\/span><span class=\"token punctuation\">)<\/span>     <span class=\"token comment\"># \u63a5\u6536\u6570\u636e<\/span>\n <\/li>\n<li>\n<p>\u5173\u95ed\u8fde\u63a5<\/p>\n<p> client_socket<span class=\"token punctuation\">.<\/span>close<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\n <\/li>\n<h3>TCP\u4e09\u6b21\u63e1\u624b\u4e0e\u56db\u6b21\u6325\u624b<\/h3>\n<h4>\u5efa\u7acb\u8fde\u63a5(\u4e09\u6b21\u63e1\u624b)<\/h4>\n<li>\u5ba2\u6237\u7aef\u53d1\u9001SYN&#061;1, seq&#061;x<\/li>\n<li>\u670d\u52a1\u5668\u56de\u590dSYN&#061;1, ACK&#061;1, seq&#061;y, ack&#061;x&#043;1<\/li>\n<li>\u5ba2\u6237\u7aef\u53d1\u9001ACK&#061;1, seq&#061;x&#043;1, ack&#061;y&#043;1<\/li>\n<h4>\u65ad\u5f00\u8fde\u63a5(\u56db\u6b21\u6325\u624b)<\/h4>\n<li>\u4e3b\u52a8\u65b9\u53d1\u9001FIN&#061;1, seq&#061;u<\/li>\n<li>\u88ab\u52a8\u65b9\u56de\u590dACK&#061;1, ack&#061;u&#043;1<\/li>\n<li>\u88ab\u52a8\u65b9\u53d1\u9001FIN&#061;1, seq&#061;v<\/li>\n<li>\u4e3b\u52a8\u65b9\u56de\u590dACK&#061;1, ack&#061;v&#043;1<\/li>\n<h3>\u7f16\u7a0b\u793a\u4f8b<\/h3>\n<h4>Python\u7b80\u5355\u5b9e\u73b0<\/h4>\n<p>\u670d\u52a1\u5668\u7aef\u4ee3\u7801&#xff1a;<\/p>\n<p><span class=\"token keyword\">import<\/span> socket<\/p>\n<p><span class=\"token keyword\">with<\/span> socket<span class=\"token punctuation\">.<\/span>socket<span class=\"token punctuation\">(<\/span>socket<span class=\"token punctuation\">.<\/span>AF_INET<span class=\"token punctuation\">,<\/span> socket<span class=\"token punctuation\">.<\/span>SOCK_STREAM<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">as<\/span> s<span class=\"token punctuation\">:<\/span><br \/>\n    s<span class=\"token punctuation\">.<\/span>bind<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;0.0.0.0&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">8888<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    s<span class=\"token punctuation\">.<\/span>listen<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    conn<span class=\"token punctuation\">,<\/span> addr <span class=\"token operator\">&#061;<\/span> s<span class=\"token punctuation\">.<\/span>accept<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">with<\/span> conn<span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;Connected by <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>addr<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token keyword\">while<\/span> <span class=\"token boolean\">True<\/span><span class=\"token punctuation\">:<\/span><br \/>\n            data <span class=\"token operator\">&#061;<\/span> conn<span class=\"token punctuation\">.<\/span>recv<span class=\"token punctuation\">(<\/span><span class=\"token number\">1024<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token keyword\">not<\/span> data<span class=\"token punctuation\">:<\/span><br \/>\n                <span class=\"token keyword\">break<\/span><br \/>\n            conn<span class=\"token punctuation\">.<\/span>sendall<span class=\"token punctuation\">(<\/span>data<span class=\"token punctuation\">)<\/span><\/p>\n<p>\u5ba2\u6237\u7aef\u4ee3\u7801&#xff1a;<\/p>\n<p><span class=\"token keyword\">import<\/span> socket<\/p>\n<p><span class=\"token keyword\">with<\/span> socket<span class=\"token punctuation\">.<\/span>socket<span class=\"token punctuation\">(<\/span>socket<span class=\"token punctuation\">.<\/span>AF_INET<span class=\"token punctuation\">,<\/span> socket<span class=\"token punctuation\">.<\/span>SOCK_STREAM<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">as<\/span> s<span class=\"token punctuation\">:<\/span><br \/>\n    s<span class=\"token punctuation\">.<\/span>connect<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;127.0.0.1&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">8888<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    s<span class=\"token punctuation\">.<\/span>sendall<span class=\"token punctuation\">(<\/span><span class=\"token string\">b&#034;Hello, server&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    data <span class=\"token operator\">&#061;<\/span> s<span class=\"token punctuation\">.<\/span>recv<span class=\"token punctuation\">(<\/span><span class=\"token number\">1024<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;Received <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>data<span class=\"token conversion-option punctuation\">!r<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><\/p>\n<h3>\u5b9e\u9645\u5e94\u7528\u4e2d\u7684\u6ce8\u610f\u4e8b\u9879<\/h3>\n<li>\n<p>\u591a\u5ba2\u6237\u7aef\u5904\u7406&#xff1a;<\/p>\n<ul>\n<li>\u4f7f\u7528\u591a\u7ebf\u7a0b\u6216\u591a\u8fdb\u7a0b\u5904\u7406\u5e76\u53d1\u8fde\u63a5<\/li>\n<li>\u6216\u4f7f\u7528I\/O\u591a\u8def\u590d\u7528(select\/poll\/epoll)<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u7c98\u5305\u95ee\u9898&#xff1a;<\/p>\n<ul>\n<li>TCP\u662f\u5b57\u8282\u6d41\u534f\u8bae&#xff0c;\u6ca1\u6709\u6d88\u606f\u8fb9\u754c<\/li>\n<li>\u89e3\u51b3\u65b9\u6848&#xff1a;\u56fa\u5b9a\u957f\u5ea6\u3001\u5206\u9694\u7b26\u3001\u957f\u5ea6\u524d\u7f00<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u5f02\u5e38\u5904\u7406&#xff1a;<\/p>\n<ul>\n<li>\u7f51\u7edc\u4e2d\u65ad\u3001\u8fde\u63a5\u91cd\u7f6e\u7b49\u5f02\u5e38\u9700\u8981\u59a5\u5584\u5904\u7406<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u8d85\u65f6\u8bbe\u7f6e&#xff1a;<\/p>\n<ul>\n<li>\u8bbe\u7f6e\u9002\u5f53\u7684\u8d85\u65f6\u65f6\u95f4\u9632\u6b62\u957f\u65f6\u95f4\u963b\u585e<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u7f13\u51b2\u533a\u5927\u5c0f&#xff1a;<\/p>\n<ul>\n<li>\u6839\u636e\u5e94\u7528\u573a\u666f\u8c03\u6574\u53d1\u9001\u548c\u63a5\u6536\u7f13\u51b2\u533a\u5927\u5c0f<\/li>\n<\/ul>\n<\/li>\n<p>TCP\u901a\u4fe1\u662f\u7f51\u7edc\u7f16\u7a0b\u7684\u57fa\u7840&#xff0c;\u7406\u89e3\u5176\u539f\u7406\u548c\u5b9e\u73b0\u65b9\u5f0f\u5bf9\u4e8e\u5f00\u53d1\u7f51\u7edc\u5e94\u7528\u7a0b\u5e8f\u81f3\u5173\u91cd\u8981\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb754\u6b21\uff0c\u70b9\u8d5e5\u6b21\uff0c\u6536\u85cf5\u6b21\u3002\u4ecb\u7ecd\u4e00\u4e0b TCP\u65b9\u5f0f\u7a0b\u5e8f\u7684\u901a\u8baf\uff0c\u670d\u52a1\u5668\u673a\u4e0e\u5ba2\u6237\u673a<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[205,43,78,4048],"topic":[],"class_list":["post-43713","post","type-post","status-publish","format-standard","hentry","category-server","tag-tcp-ip","tag-43","tag-78","tag-4048"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u4ecb\u7ecd\u4e00\u4e0b TCP\u65b9\u5f0f\u7a0b\u5e8f\u7684\u901a\u8baf\uff0c\u670d\u52a1\u5668\u673a\u4e0e\u5ba2\u6237\u673a - \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\/43713.html\" 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