{"id":483,"date":"2023-03-31T19:04:08","date_gmt":"2023-03-31T11:04:08","guid":{"rendered":"https:\/\/www.coni.top\/blog\/?p=483"},"modified":"2023-04-02T21:16:54","modified_gmt":"2023-04-02T13:16:54","slug":"socket_zhong_yong_fei_zu_sai_mo_shi_de_recvfrom_fang_fa_jie_shou","status":"publish","type":"post","link":"https:\/\/www.coni.top\/blog\/?p=483","title":{"rendered":"Socket\u4e2d\u7528\u975e\u963b\u585e\u6a21\u5f0f\u7684recvfrom\u65b9\u6cd5\u63a5\u6536"},"content":{"rendered":"\n<p><a href=\"https:\/\/www.coni.top\/blog\/?p=475\" data-type=\"URL\" data-id=\"https:\/\/www.coni.top\/blog\/?p=475\" target=\"_blank\" rel=\"noreferrer noopener\">\u4e0a\u4e00\u7bc7<\/a>\u4e2d\u7684Client\u7aef\u548cSever\u7aef\u7684\u4ee3\u7801\uff0c\u53ea\u6709\u5728Client\u7aef\u53d1\u9001 <code>exit<\/code> \u624d\u80fd\u5b89\u5168\u7ed3\u675f\u4e24\u4e2apython\u8fdb\u7a0b\uff0c\u5982\u679c\u76f4\u63a5\u9000\u4f1a\u5bfc\u81f4<code>while<\/code>\u5faa\u73af\u540e\u7684 <code>s.close()<\/code> \u6ca1\u6709\u88ab\u6267\u884c\uff0c\u90a3\u4e48\u88ab\u5360\u7528\u7684\u7aef\u53e3\u5c31\u4e0d\u80fd\u88ab\u91ca\u653e\uff0c\u53ea\u7528\u91cd\u542f\u624d\u80fd\u63a5\u89e6\u7aef\u53e3\u5360\u7528\u3002Client\u7aef\u8fd8\u597d\uff0c\u53ef\u4ee5\u624b\u52a8\u8f93\u5165exit\u6765\u7ed3\u675f\uff0cSever\u7aef\u5219\u9700\u8981\u4e00\u76f4\u7b49\u63a5\u6536\u5230\u624d\u80fd\u7ed3\u675f\uff0c\u8fd9\u663e\u7136\u662f\u4e0d\u5408\u7406\u7684\u3002<\/p>\n\n\n\n<p>\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u53ea\u9700\u8981\u5728\u7ed3\u675f\u7684\u65f6\u5019\u6267\u884c <code>s.close()<\/code> \u5373\u53ef\uff0c\u53ef\u4ee5\u7528 <code>try: \uff1bexcept KeyboardInterrupt:\uff1b<\/code>\u8bed\u53e5\u6765\u6355\u83b7\u7ed3\u675f\u7684\u4fe1\u53f7\uff0c\u5728\u547d\u4ee4\u884c\u6309\u4e0bCtrl-C\u89e6\u53d1\u6267\u884c<code>except KeyboardInterrupt:<\/code>\u4e2d\u7684\u5185\u5bb9\u5373\u53ef\u3002Client\u7aef\u7684\u4ee3\u7801\u5982\u4e0b<\/p>\n\n\n\n<p>Client\u7aef\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import socket\n# UDP\u5ba2\u6237\u7aef\u6301\u7eed\u53d1\u9001\u6d88\u606f\u4ee3\u7801\ns = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)  # \u521b\u5efaUDP\u7c7b\u578b\u7684\u5957\u63a5\u5b57\n#s.bind((\"127.0.0.1\", 46552)) #UDPclient\u7aef\u53ef\u4ee5\u4e0d\u7ed1\u5b9a\u7aef\u53e3\uff0cclient\u7aef\u4e0d\u7ed1\u5b9a\u65f6\u662f\u968f\u673a\u7aef\u53e3\u53d1\u9001\u7684\naddr = (\"127.0.0.1\", 46551)\ntry:\n    while True:\n        data = input(\"\u8bf7\u8f93\u5165\uff1a\")\n        s.sendto(data.encode(\"gbk\"), addr)\n        if data == \"exit\":\n            print(\"\u7ed3\u675f\u804a\u5929\uff01\")\n            break\n    s.close()\nexcept KeyboardInterrupt: #Ctrl-C\n    s.close()\n    print('\u7ed3\u675f\u804a\u5929\uff01')<\/code><\/pre>\n\n\n\n<p>Sever\u7aef\u7528\u540c\u6837\u7684\u65b9\u6cd5\u5e76\u4e0d\u80fd\u76f4\u63a5\u9000\u51fapython\u8fdb\u7a0b\uff0c\u7ecf\u5206\u6790\uff0c\u53d1\u73b0\u662f\u56e0\u4e3a <code>s.recvfrom<\/code> \u9ed8\u8ba4\u662f\u963b\u585e\u72b6\u6001\uff0c\u6240\u4ee5\u8c03\u7528\u4e0d\u4f1a\u7acb\u5373\u8fd4\u56de\uff0c\u800c\u662f\u8fdb\u5165\u7761\u7720\u7b49\u5f85\u64cd\u4f5c\u5b8c\u6210\uff0c\u53ea\u9700\u8981\u5c06\u5c06\u5957\u63a5\u5b57\u8bbe\u7f6e\u4e3a\u975e\u963b\u585e\u6a21\u5f0f\uff0c <code>recvfrom<\/code> \u51fd\u6570\u5728\u975e\u963b\u585e\u6a21\u5f0f\u4e0b\u8fdb\u884c\u8c03\u7528\uff0c\u5982\u679c\u6ca1\u6709\u6570\u636e\u5305\u53ef\u7528\uff0c\u5219\u4f1a\u629b\u51fa <code>socket.error<\/code> \u5f02\u5e38\uff0c\u8be5\u5f02\u5e38\u53ef\u4ee5\u901a\u8fc7 <code>try\/except<\/code> \u8bed\u53e5\u8fdb\u884c\u6355\u83b7\uff0c\u4ece\u800c\u4f7f\u7a0b\u5e8f\u53ef\u4ee5\u7ee7\u7eed\u6267\u884c\u5176\u4ed6\u64cd\u4f5c\u3002Sever\u7aef\u4ee3\u7801\u5982\u4e0b<\/p>\n\n\n\n<p>Sever\u7aef\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import socket\n# \u6301\u7eed\u901a\u4fe1\ns = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)  # \u521b\u5efaUDP\u7c7b\u578b\u7684\u5957\u63a5\u5b57\ns.bind((\"127.0.0.1\", 46551))  # \u7ed1\u5b9a\u7aef\u53e3,ip\u53ef\u4ee5\u4e0d\u5199\ns.setblocking(False)  # \u5c06\u5957\u63a5\u5b57\u8bbe\u7f6e\u4e3a\u975e\u963b\u585e\u6a21\u5f0f\uff08\u9ed8\u8ba4\u963b\u585e\u6a21\u5f0f\uff0c\u6267\u884c\u5230recvfrom\u51fd\u6570\u4f1a\u963b\u585e\uff09\n#recvfrom\u51fd\u6570\u5728\u975e\u963b\u585e\u6a21\u5f0f\u4e0b\u8fdb\u884c\u8c03\u7528\uff0c\u5982\u679c\u6ca1\u6709\u6570\u636e\u5305\u53ef\u7528\uff0c\u5219\u4f1a\u629b\u51fasocket.error\u5f02\u5e38\uff0c\u8be5\u5f02\u5e38\u53ef\u4ee5\u901a\u8fc7try\/except\u8bed\u53e5\u8fdb\u884c\u6355\u83b7\uff0c\u4ece\u800c\u4f7f\u7a0b\u5e8f\u53ef\u4ee5\u7ee7\u7eed\u6267\u884c\u5176\u4ed6\u64cd\u4f5c\nprint(\"\u7b49\u5f85\u63a5\u6536\u6570\u636e\uff01\")\ntry:\n    while True:\n        try:\n            recv_data, recv_addr = s.recvfrom(1024)  # 1024\u8868\u793a\u672c\u6b21\u63a5\u6536\u7684\u6700\u5927\u5b57\u8282\u6570\uff0crecvfrom\u4e00\u76f4\u76d1\u542c\u77e5\u9053\u7531\u6570\u636e\u88ab\u63a5\u53d7\n            print(recv_data, recv_addr)\n            data = recv_data.decode('gbk')\n            print(f\"\u6536\u5230\u8fdc\u7a0b\u4fe1\u606f:{data},from {recv_addr}\")\n            if data == \"exit\":\n                print(\"\u7ed3\u675f\u804a\u5929\uff01\")\n                break\n        except socket.error:\n            pass\n    s.close()\nexcept KeyboardInterrupt: #Ctrl-C\n    s.close()\n    print('\u7ed3\u675f\u804a\u5929\uff01')<\/code><\/pre>\n\n\n\n<p><strong>\u963b\u585e<\/strong>\u5c31\u662f\u8ba9\u5f53\u524d\u8c03\u7528\u7ebf\u7a0b\u4e00\u76f4\u5904\u4e8e\u505c\u6b62\u7b49\u5f85\u5f53\u4e2d\uff0c\u6302\u8d77\u7684\u72b6\u6001\uff0c\u7ebf\u7a0b\u51fd\u6570\u4f1a\u88ab\u5361\u4f4f\u3002<br><strong>\u975e\u963b\u585e<\/strong>\u5219\u662f\u4e0d\u7ba1\u8fd0\u884c\u7ed3\u679c\u5982\u4f55\uff0c\u90fd\u4f1a\u7ee7\u7eed\u5f80\u4e0b\u6267\u884c\uff08\u5f80\u5f80\u90fd\u8981\u5904\u7406\u5f88\u591a\u8fd4\u56de\u7ed3\u679c\uff09\uff0c\u7ebf\u7a0b\u51fd\u6570\u91cc\u4e00\u822c\u90fd\u662f\u4e00\u4e2a\u5faa\u73af\uff0c\u4e0d\u505c\u7684\u8f6e\u8be2\u3002<br>\u518d\u7406\u4e00\u4e0b\u53d1\u9001\u63a5\u6536\u51fd\u6570\u3002<br><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e0a\u4e00\u7bc7\u4e2d\u7684Client\u7aef\u548cSever\u7aef\u7684\u4ee3\u7801\uff0c\u53ea\u6709\u5728Client\u7aef\u53d1\u9001 exit \u624d\u80fd\u5b89\u5168\u7ed3\u675f\u4e24\u4e2apython [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"cybocfi_hide_featured_image":"","footnotes":""},"categories":[45],"tags":[50,46,49],"views":644,"_links":{"self":[{"href":"https:\/\/www.coni.top\/blog\/index.php?rest_route=\/wp\/v2\/posts\/483"}],"collection":[{"href":"https:\/\/www.coni.top\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.coni.top\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.coni.top\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.coni.top\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=483"}],"version-history":[{"count":2,"href":"https:\/\/www.coni.top\/blog\/index.php?rest_route=\/wp\/v2\/posts\/483\/revisions"}],"predecessor-version":[{"id":498,"href":"https:\/\/www.coni.top\/blog\/index.php?rest_route=\/wp\/v2\/posts\/483\/revisions\/498"}],"wp:attachment":[{"href":"https:\/\/www.coni.top\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=483"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.coni.top\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=483"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.coni.top\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=483"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}