{"id":333,"date":"2021-04-28T11:21:04","date_gmt":"2021-04-28T03:21:04","guid":{"rendered":"http:\/\/112.124.66.68\/?p=333"},"modified":"2021-04-28T11:21:04","modified_gmt":"2021-04-28T03:21:04","slug":"tcp%e5%92%8cudp%e7%9a%84%e5%8c%ba%e5%88%ab%e5%92%8c%e4%bc%98%e7%bc%ba%e7%82%b9%e6%80%bb%e7%bb%93","status":"publish","type":"post","link":"https:\/\/sanlangcode.com\/index.php\/2021\/04\/28\/tcp%e5%92%8cudp%e7%9a%84%e5%8c%ba%e5%88%ab%e5%92%8c%e4%bc%98%e7%bc%ba%e7%82%b9%e6%80%bb%e7%bb%93\/","title":{"rendered":"TCP\u548cUDP\u7684\u533a\u522b\u548c\u4f18\u7f3a\u70b9\u603b\u7ed3"},"content":{"rendered":"\n

TCP\/IP\uff1a:Transmission Control Protocol \/ Internet Protocol \u4e2d\u6587\u7ffb\u8bd1:\u4f20\u8f93\u63a7\u5236\u534f\u8bae \/ \u4e92\u8054\u7f51\u534f\u8bae<\/p>\n\n\n\n

UDP\uff1aUDP \u662fUser Datagram Protocol\u7684\u7b80\u79f0\uff0c \u4e2d\u6587\u540d\u662f\u7528\u6237\u6570\u636e\u62a5\u534f\u8bae<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n
\"\"<\/figure>\n\n\n\n

\u4e00\uff1aTCP\u4e0eUDP\u533a\u522b\u603b\u7ed3\uff1a<\/p>\n\n\n\n

1\u3001 TCP\u9762\u5411\u8fde\u63a5 \uff08\u5982\u6253\u7535\u8bdd\u8981\u5148\u62e8\u53f7\u5efa\u7acb\u8fde\u63a5\uff09; UDP\u662f\u65e0\u8fde\u63a5 \u7684\uff0c\u5373\u53d1\u9001\u6570\u636e\u4e4b\u524d\u4e0d\u9700\u8981\u5efa\u7acb\u8fde\u63a5<\/p>\n\n\n\n

2\u3001TCP\u63d0\u4f9b\u53ef\u9760\u7684\u670d\u52a1\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u901a\u8fc7TCP\u8fde\u63a5\u4f20\u9001\u7684\u6570\u636e\uff0c\u65e0\u5dee\u9519\uff0c\u4e0d\u4e22\u5931\uff0c\u4e0d\u91cd\u590d\uff0c\u4e14\u6309\u5e8f\u5230\u8fbe;UDP\u5c3d\u6700\u5927\u52aa\u529b\u4ea4\u4ed8\uff0c\u5373\u4e0d\u4fdd\u8bc1\u53ef\u9760\u4ea4\u4ed8Tcp\u901a\u8fc7\u6821\u9a8c\u548c\uff0c\u91cd\u4f20\u63a7\u5236\uff0c\u5e8f\u53f7\u6807\u8bc6\uff0c\u6ed1\u52a8\u7a97\u53e3\u3001\u786e\u8ba4\u5e94\u7b54\u5b9e\u73b0\u53ef\u9760\u4f20\u8f93\u3002\u5982\u4e22\u5305\u65f6\u7684\u91cd\u53d1\u63a7\u5236\uff0c\u8fd8\u53ef\u4ee5\u5bf9\u6b21\u5e8f\u4e71\u6389\u7684\u5206\u5305\u8fdb\u884c\u987a\u5e8f\u63a7\u5236\u3002<\/p>\n\n\n\n

3\u3001UDP\u5177\u6709\u8f83\u597d\u7684\u5b9e\u65f6\u6027\uff0c\u5de5\u4f5c\u6548\u7387\u6bd4TCP\u9ad8\uff0c\u9002\u7528\u4e8e\u5bf9\u9ad8\u901f\u4f20\u8f93\u548c\u5b9e\u65f6\u6027\u6709\u8f83\u9ad8\u7684\u901a\u4fe1\u6216\u5e7f\u64ad\u901a\u4fe1\u3002<\/p>\n\n\n\n

4.\u6bcf\u4e00\u6761TCP\u8fde\u63a5\u53ea\u80fd\u662f\u70b9\u5230\u70b9\u7684;UDP\u652f\u6301\u4e00\u5bf9\u4e00\uff0c\u4e00\u5bf9\u591a\uff0c\u591a\u5bf9\u4e00\u548c\u591a\u5bf9\u591a\u7684\u4ea4\u4e92\u901a\u4fe1<\/p>\n\n\n\n

5\u3001TCP\u5bf9\u7cfb\u7edf\u8d44\u6e90\u8981\u6c42\u8f83\u591a\uff0cUDP\u5bf9\u7cfb\u7edf\u8d44\u6e90\u8981\u6c42\u8f83\u5c11\u3002<\/p>\n\n\n\n

\u4e8c\uff1a\u4e3a\u4ec0\u4e48UDP\u6709\u65f6<\/strong>\u6bd4TCP\u66f4\u6709\u4f18\u52bf?<\/p>\n\n\n\n

UDP\u4ee5\u5176\u7b80\u5355\u3001\u4f20\u8f93\u5feb\u7684\u4f18\u52bf\uff0c\u5728\u8d8a\u6765\u8d8a\u591a\u573a\u666f\u4e0b\u53d6\u4ee3\u4e86TCP,\u5982\u5b9e\u65f6\u6e38\u620f\u3002<\/p>\n\n\n\n

\uff081\uff09\u7f51\u901f\u7684\u63d0\u5347\u7ed9UDP\u7684\u7a33\u5b9a\u6027\u63d0\u4f9b\u53ef\u9760\u7f51\u7edc\u4fdd\u969c\uff0c\u4e22\u5305\u7387\u5f88\u4f4e\uff0c\u5982\u679c\u4f7f\u7528\u5e94\u7528\u5c42\u91cd\u4f20\uff0c\u80fd\u591f\u786e\u4fdd\u4f20\u8f93\u7684\u53ef\u9760\u6027\u3002<\/p>\n\n\n\n

\uff082\uff09TCP\u4e3a\u4e86\u5b9e\u73b0\u7f51\u7edc\u901a\u4fe1\u7684\u53ef\u9760\u6027\uff0c\u4f7f\u7528\u4e86\u590d\u6742\u7684\u62e5\u585e\u63a7\u5236\u7b97\u6cd5\uff0c\u5efa\u7acb\u4e86\u7e41\u7410\u7684\u63e1\u624b\u8fc7\u7a0b\uff0c\u7531\u4e8eTCP\u5185\u7f6e\u7684\u7cfb\u7edf\u534f\u8bae\u6808\u4e2d\uff0c\u6781\u96be\u5bf9\u5176\u8fdb\u884c\u6539\u8fdb\u3002<\/p>\n\n\n\n

\u91c7\u7528TCP\uff0c\u4e00\u65e6\u53d1\u751f\u4e22\u5305\uff0cTCP\u4f1a\u5c06\u540e\u7eed\u7684\u5305\u7f13\u5b58\u8d77\u6765\uff0c\u7b49\u524d\u9762\u7684\u5305\u91cd\u4f20\u5e76\u63a5\u6536\u5230\u540e\u518d\u7ee7\u7eed\u53d1\u9001\uff0c\u5ef6\u65f6\u4f1a\u8d8a\u6765\u8d8a\u5927\uff0c\u57fa\u4e8eUDP\u5bf9\u5b9e\u65f6\u6027\u8981\u6c42\u8f83\u4e3a\u4e25\u683c\u7684\u60c5\u51b5\u4e0b\uff0c\u91c7\u7528\u81ea\u5b9a\u4e49\u91cd\u4f20\u673a\u5236\uff0c\u80fd\u591f\u628a\u4e22\u5305\u4ea7\u751f\u7684\u5ef6\u8fdf\u964d\u5230\u6700\u4f4e\uff0c\u5c3d\u91cf\u51cf\u5c11\u7f51\u7edc\u95ee\u9898\u5bf9\u6e38\u620f\u6027\u9020\u6210\u5f71\u54cd\u3002<\/p>\n\n\n\n

\u4e09\uff1aUDP\u548cTCP\u7f16\u7a0b\u6b65\u9aa4\u4e5f\u6709\u4e9b\u4e0d\u540c\uff0c\u5982\u4e0b\uff1a<\/p>\n\n\n\n

TCP:<\/strong>
TCP\u7f16\u7a0b\u7684\u670d\u52a1\u5668<\/span>\u7aef\u4e00\u822c\u6b65\u9aa4\u662f\uff1a<\/p>\n\n\n\n

1\u3001\u521b\u5efa\u4e00\u4e2asocket\uff0c\u7528\u51fd\u6570socket()\uff1b<\/p>\n\n\n\n

2\u3001\u8bbe\u7f6esocket\u5c5e\u6027\uff0c\u7528\u51fd\u6570setsockopt(); * \u53ef\u9009<\/p>\n\n\n\n

3\u3001\u7ed1\u5b9aIP\u5730\u5740\u3001\u7aef\u53e3\u7b49\u4fe1\u606f\u5230socket\u4e0a\uff0c\u7528\u51fd\u6570bind(); <\/p>\n\n\n\n

4\u3001\u5f00\u542f\u76d1\u542c\uff0c\u7528\u51fd\u6570listen()\uff1b <\/p>\n\n\n\n

5\u3001\u63a5\u6536\u5ba2\u6237\u7aef\u4e0a\u6765\u7684\u8fde\u63a5\uff0c\u7528\u51fd\u6570accept()\uff1b \u3000<\/em><\/p>\n\n\n\n

6\u3001\u6536\u53d1\u6570\u636e\uff0c\u7528\u51fd\u6570send()\u548crecv()\uff0c\u6216\u8005read()\u548cwrite(); \u3000\u3000<\/em><\/p>\n\n\n\n

7\u3001\u5173\u95ed\u7f51\u7edc\u8fde\u63a5\uff1b closesocket(SocketListen);closesocket(SocketWaiter); \u3000\u3000<\/em><\/p>\n\n\n\n

8\u3001\u5173\u95ed\u76d1\u542c\uff1b SOCK_STREAM\u8fd9\u79cd\u7684\u7279\u70b9\u662f\u9762\u5411\u8fde\u63a5\u7684\uff0c\u5373\u6bcf\u6b21\u6536\u53d1\u6570\u636e\u4e4b\u524d\u5fc5\u987b\u901a\u8fc7connect\u5efa\u7acb\u8fde\u63a5\uff0c\u800cSOCK_DGRAM\u8fd9\u79cd\u662fUser Datagram Protocol\u534f\u8bae\u7684\u7f51\u7edc\u901a\u8baf\uff0c\u5b83\u662f\u65e0\u8fde\u63a5\u7684\uff0c\u4e0d\u53ef\u9760\u7684\u3002 <\/em><\/p>\n\n\n\n

TCP\u7f16\u7a0b\u7684\u5ba2\u6237\u7aef<\/span>\u4e00\u822c\u6b65\u9aa4\u662f\uff1a \u3000\u3000<\/em><\/p>\n\n\n\n

1\u3001\u521b\u5efa\u4e00\u4e2asocket\uff0c\u7528\u51fd\u6570socket()\uff1b \u3000\u3000<\/em><\/p>\n\n\n\n

2\u3001\u8bbe\u7f6esocket\u5c5e\u6027\uff0c\u7528\u51fd\u6570setsockopt();<\/em> \u53ef\u9009<\/p>\n\n\n\n

3\u3001\u7ed1\u5b9aIP\u5730\u5740\u3001\u7aef\u53e3\u7b49\u4fe1\u606f\u5230socket\u4e0a\uff0c\u7528\u51fd\u6570bind();* \u53ef\u9009<\/p>\n\n\n\n

4\u3001\u8bbe\u7f6e\u8981\u8fde\u63a5\u7684\u5bf9\u65b9\u7684IP\u5730\u5740\u548c\u7aef\u53e3\u7b49\u5c5e\u6027\uff1b<\/p>\n\n\n\n

5\u3001\u8fde\u63a5\u670d\u52a1\u5668\uff0c\u7528\u51fd\u6570connect()\uff1b<\/p>\n\n\n\n

6\u3001\u6536\u53d1\u6570\u636e\uff0c\u7528\u51fd\u6570send()\u548crecv()\uff0c\u6216\u8005read()\u548cwrite();<\/p>\n\n\n\n

7\u3001\u5173\u95ed\u7f51\u7edc\u8fde\u63a5\uff1b<\/p>\n\n\n\n


UDP:<\/strong>
\u4e0e\u4e4b\u5bf9\u5e94\u7684UDP\u7f16\u7a0b\u6b65\u9aa4\u8981\u7b80\u5355\u8bb8\u591a\uff0c\u5206\u522b\u5982\u4e0b\uff1a
\u3000\u3000UDP\u7f16\u7a0b\u7684\u670d\u52a1\u5668\u7aef\u4e00\u822c\u6b65\u9aa4\u662f\uff1a
\u3000\u30001\u3001\u521b\u5efa\u4e00\u4e2asocket\uff0c\u7528\u51fd\u6570socket()\uff1b
\u3000\u30002\u3001\u8bbe\u7f6esocket\u5c5e\u6027\uff0c\u7528\u51fd\u6570setsockopt();* \u53ef\u9009
\u3000\u30003\u3001\u7ed1\u5b9aIP\u5730\u5740\u3001\u7aef\u53e3\u7b49\u4fe1\u606f\u5230socket\u4e0a\uff0c\u7528\u51fd\u6570bind();
\u3000\u30004\u3001\u5faa\u73af\u63a5\u6536\u6570\u636e\uff0c\u7528\u51fd\u6570recvfrom();
\u3000\u30005\u3001\u5173\u95ed\u7f51\u7edc\u8fde\u63a5\uff1b<\/p>\n\n\n\n

UDP\u7f16\u7a0b\u7684\u5ba2\u6237\u7aef\u4e00\u822c\u6b65\u9aa4\u662f\uff1a
\u3000\u30001\u3001\u521b\u5efa\u4e00\u4e2asocket\uff0c\u7528\u51fd\u6570socket()\uff1b
\u3000\u30002\u3001\u8bbe\u7f6esocket\u5c5e\u6027\uff0c\u7528\u51fd\u6570setsockopt();* \u53ef\u9009
\u3000\u30003\u3001\u7ed1\u5b9aIP\u5730\u5740\u3001\u7aef\u53e3\u7b49\u4fe1\u606f\u5230socket\u4e0a\uff0c\u7528\u51fd\u6570bind();* \u53ef\u9009
\u3000\u30004\u3001\u8bbe\u7f6e\u5bf9\u65b9\u7684IP\u5730\u5740\u548c\u7aef\u53e3\u7b49\u5c5e\u6027;
\u3000\u30005\u3001\u53d1\u9001\u6570\u636e\uff0c\u7528\u51fd\u6570sendto();
\u3000\u30006\u3001\u5173\u95ed\u7f51\u7edc\u8fde\u63a5\uff1b<\/p>\n\n\n\n

\u6b64\u5916\uff1aTcp\u5934\u90e8\uff0c20\u5b57\u8282\uff1bUDP\u9996\u90e8,8\u4e2a\u5b57\u8282
<\/p>\n","protected":false},"excerpt":{"rendered":"

TCP\/IP\uff1a:Transmis...<\/p>\n","protected":false},"author":1,"featured_media":334,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18],"tags":[],"class_list":["post-333","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-18"],"_links":{"self":[{"href":"https:\/\/sanlangcode.com\/index.php\/wp-json\/wp\/v2\/posts\/333","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sanlangcode.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sanlangcode.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sanlangcode.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sanlangcode.com\/index.php\/wp-json\/wp\/v2\/comments?post=333"}],"version-history":[{"count":0,"href":"https:\/\/sanlangcode.com\/index.php\/wp-json\/wp\/v2\/posts\/333\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sanlangcode.com\/index.php\/wp-json\/wp\/v2\/media\/334"}],"wp:attachment":[{"href":"https:\/\/sanlangcode.com\/index.php\/wp-json\/wp\/v2\/media?parent=333"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sanlangcode.com\/index.php\/wp-json\/wp\/v2\/categories?post=333"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sanlangcode.com\/index.php\/wp-json\/wp\/v2\/tags?post=333"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}