{"id":87506,"date":"2026-07-30T13:32:57","date_gmt":"2026-07-30T05:32:57","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/87506.html"},"modified":"2026-07-30T13:32:57","modified_gmt":"2026-07-30T05:32:57","slug":"%e3%80%90qt%e3%80%91%e7%b3%bb%e7%bb%9f%e7%9b%b8%e5%85%b3%ef%bc%88%e4%b8%83%ef%bc%89%e7%bd%91%e7%bb%9c%e7%bc%96%e7%a8%8b%e8%ae%b2%e8%a7%a3%ef%bc%8cudp%e5%9b%9e%e6%98%be%e6%9c%8d%e5%8a%a1%e5%99%a8","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/87506.html","title":{"rendered":"\u3010Qt\u3011\u7cfb\u7edf\u76f8\u5173\uff08\u4e03\uff09\u7f51\u7edc\u7f16\u7a0b\u8bb2\u89e3\uff0cUDP\u56de\u663e\u670d\u52a1\u5668\u7684\u5b9e\u73b0\uff0cQUdpSocket\u548cQNetworkDatagram\u7684\u8bb2\u89e3"},"content":{"rendered":"<p>\u5c0f\u7f16\u4e2a\u4eba\u4e3b\u9875\u8be6\u60c5&lt;\u2014\u8bf7\u70b9\u51fb \u5c0f\u7f16\u4e2a\u4ebagitee\u4ee3\u7801\u4ed3\u5e93&lt;\u2014\u8bf7\u70b9\u51fb Qt\u7cfb\u5217\u4e13\u680f&lt;\u2014\u8bf7\u70b9\u51fb <font color=\"red\">\u5018\u82e5\u547d\u4e2d\u65e0\u6b64\u8fd0&#xff0c;\u5b64\u8eab\u4ea6\u53ef\u767b\u6606\u4ed1&#xff0c;\u9001\u7ed9\u5c4f\u5e55\u9762\u524d\u7684\u8bfb\u8005\u670b\u53cb\u4eec\u548c\u5c0f\u7f16\u81ea\u5df1! <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260730053254-6a6ae206e8438.gif\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/font><\/p>\n<hr \/>\n<h4>\u76ee\u5f55<\/h4>\n<ul>\n<li>\n<ul>\n<li>\u524d\u8a00<\/li>\n<li>\u4e00\u3001\u7f51\u7edc\u7f16\u7a0b\u8bb2\u89e3<\/li>\n<li>\u4e8c\u3001UDP\u5bf9\u5e94QUdpSocket\u548cQNetworkDatagram\u7684\u63a5\u53e3\u4ecb\u7ecd<\/li>\n<li>\u4e09\u3001UDP\u56de\u663e\u670d\u52a1\u5668\u7684\u5b9e\u73b0<\/li>\n<li>\u603b\u7ed3<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h3>\u524d\u8a00<\/h3>\n<p>\u3010Qt\u3011\u7cfb\u7edf\u76f8\u5173&#xff08;\u516d&#xff09;QMutex\u9501&#xff0c;QMutexLocker\u7684\u4f7f\u7528&#xff0c;QWaitCondition\u6761\u4ef6\u53d8\u91cf&#xff0c;QSemaphore\u4fe1\u53f7\u91cf\u7684\u8bb2\u89e3\u2014\u2014\u4e66\u63a5\u4e0a\u6587 \u8be6\u60c5\u8bf7\u70b9\u51fb&lt;\u2014\u2014&#xff0c;\u672c\u6587\u4f1a\u5728\u4e0a\u6587\u7684\u57fa\u7840\u4e0a\u8fdb\u884c\u8bb2\u89e3&#xff0c;\u6240\u4ee5\u5bf9\u4e0a\u6587\u4e0d\u4e86\u89e3\u7684\u8bfb\u8005\u53cb\u53cb\u8bf7\u70b9\u51fb\u524d\u65b9\u7684\u84dd\u5b57\u94fe\u63a5\u8fdb\u884c\u5b66\u4e60 \u672c\u6587\u7531\u5c0f\u7f16\u4e3a\u5927\u5bb6\u4ecb\u7ecd\u2014\u2014\u3010Qt\u3011\u7cfb\u7edf\u76f8\u5173&#xff08;\u4e03&#xff09;\u7f51\u7edc\u7f16\u7a0b\u8bb2\u89e3&#xff0c;UDP\u56de\u663e\u670d\u52a1\u5668\u7684\u5b9e\u73b0&#xff0c;QUdpSocket\u548cQNetworkDatagram\u7684\u8bb2\u89e3<\/p>\n<hr \/>\n<h3>\u4e00\u3001\u7f51\u7edc\u7f16\u7a0b\u8bb2\u89e3<\/h3>\n<li>\u63a5\u4e0b\u6765\u6211\u4eec\u5c31\u8981\u5b66\u4e60Qt\u7f51\u7edc\u7f16\u7a0b\u4e86&#xff0c;\u90a3\u4e48\u8fd9\u91cc\u5c0f\u7f16\u5728\u4e4b\u524d\u8bb2\u89e3\u8fc7Linux\u7f51\u7edc\u7f16\u7a0b&#xff0c;\u800cQt\u7f51\u7edc\u7f16\u7a0b\u5176\u5b9e\u4e5f\u5c31\u662f\u5bf9Linux\u7f51\u7edc\u7f16\u7a0b\u7684\u5c01\u88c5&#xff0c;\u4e5f\u5c31\u662f\u8bf4Qt\u7f51\u7edc\u7f16\u7a0b\u5176\u5b9e\u662f\u548c\u6211\u4eec\u4e4b\u524d\u5b66\u4e60\u7684Linux\u7f51\u7edc\u7f16\u7a0b\u5f3a\u76f8\u5173\u7684&#xff0c;\u6240\u4ee5\u5404\u6709\u8bfb\u8005\u53cb\u53cb&#xff0c;\u5728\u5b66\u4e60Qt\u7f51\u7edc\u7f16\u7a0b\u4e4b\u524d&#xff0c;\u4e00\u5b9a\u4e00\u5b9a\u8981\u628aLinux\u7f51\u7edc\u7f16\u7a0b\u5b66\u4e60\u624e\u5b9e\u518d\u6765\u5b66\u4e60 \u5173\u4e8eLinux\u7f51\u7edc\u7f16\u7a0b\u7684\u8bb2\u89e3&#xff0c;\u8be6\u60c5\u8bf7\u70b9\u51fb&lt;\u2014\u2014&#xff0c;\u90a3\u4e48\u540e\u9762\u5c0f\u7f16\u5728\u8fdb\u884c\u8bb2\u89e3Qt\u7f51\u7edc\u7f16\u7a0b\u7684\u65f6\u5019&#xff0c;\u9ed8\u8ba4\u5927\u5bb6\u5df2\u7ecf\u638c\u63e1\u4e86Linux\u7f51\u7edc\u7f16\u7a0b\u7684\u76f8\u5173\u77e5\u8bc6&#xff0c;\u5e76\u4e14\u7531\u4e8eLinux\u7f51\u7edc\u7f16\u7a0b\u5185\u5bb9\u5f88\u591a&#xff0c;\u8fd9\u91cc\u5c0f\u7f16\u4e0d\u4fbf\u4e8e\u8d34\u51fa\u94fe\u63a5&#xff0c;\u800c\u662f\u76f4\u63a5\u62ffLinux\u7f51\u7edc\u7f16\u7a0b\u7684\u77e5\u8bc6\u8fdb\u884c\u8bb2\u89e3Qt\u7f51\u7edc\u7f16\u7a0b\u4e86<\/li>\n<li>\u5bf9\u4e8e\u7f51\u7edc\u7f16\u7a0b\u5176\u5b9e\u662f\u64cd\u4f5c\u7cfb\u7edf\u63d0\u4f9b\u7684\u4e00\u7ec4\u7f51\u7edc\u7f16\u7a0bAPI&#xff0c;\u4e5f\u5c31\u662fSocket API&#xff0c;\u5bf9\u4e8eLinux\u4e2d\u4e5f\u5c31\u662fSocket\u7f16\u7a0b&#xff0c;Qt\u7f51\u7edc\u7f16\u7a0b\u4e5f\u5c31\u662f\u5bf9\u64cd\u4f5c\u7cfb\u7edf\u63d0\u4f9b\u7684\u7f51\u7edc\u7f16\u7a0bAPI\u8fdb\u884c\u7684\u5c01\u88c5&#xff0c;\u548c\u4e4b\u524d\u4e0d\u540c&#xff0c;C&#043;&#043;\u6807\u51c6\u5e93\u4e2d\u5e76\u6ca1\u6709\u63d0\u4f9b\u5bf9\u4e8e\u7cfb\u7edf\u7684\u7f51\u7edc\u7f16\u7a0bAPI\u7684\u5c01\u88c5<\/li>\n<li>\u4e5f\u5c31\u662f\u8bf4C&#043;&#043;\u6807\u51c6\u5e93\u5e76\u6ca1\u6709\u63d0\u4f9b\u7f51\u7edc\u5e93&#xff0c;\u800c\u5728\u65e5\u5e38\u7f16\u7801\u7684\u8fc7\u7a0b\u4e2d&#xff0c;\u5982\u679c\u4f7f\u7528\u7cfb\u7edf\u7684\u7f51\u7edc\u7f16\u7a0b\u5728\u63a5\u53e3\u8c03\u7528\u4e0a\u8fdb\u884c\u4f20\u53c2\u5341\u5206\u7684\u4e0d\u4fbf&#xff0c;\u5e76\u4e14\u5728\u65e5\u5e38\u5f00\u53d1\u4e2d&#xff0c;\u5bf9\u4e8e\u7f51\u7edc\u7f16\u7a0b\u7684\u4f7f\u7528\u573a\u666f\u6709\u5f88\u591a&#xff0c;\u800c\u4f60C&#043;&#043;\u6807\u51c6\u5e93\u5374\u53c8\u4e0d\u63d0\u4f9b\u7f51\u7edc\u5e93&#xff0c;\u6240\u4ee5\u8fd9\u5c31\u5f88\u8ba9\u4eba\u607c\u706b<\/li>\n<li>\u66f4\u607c\u706b\u7684\u662f\u5728C&#043;&#043;\u65b0\u6807\u51c6\u4e2d\u653e\u7740\u7f51\u7edc\u5e93\u4e0d\u8fdb\u884c\u63d0\u4f9b&#xff0c;\u53cd\u800c\u53bb\u63d0\u4f9b\u4e00\u4e9b\u65e0\u5173\u7d27\u8981&#xff0c;\u5947\u5947\u602a\u602a\u7684\u4e1c\u897f&#xff0c;\u5173\u4e8e\u8fd9\u80cc\u540e\u7684\u539f\u56e0&#xff0c;\u6211\u4eec\u4e5f\u4e0d\u5f97\u800c\u77e5&#xff0c;\u5f53\u7136&#xff0c;\u5c0f\u7f16\u53ea\u662f\u7ad9\u5728\u73b0\u5728C&#043;&#043;\u76ee\u524d\u6700\u65b0\u7684C&#043;&#043;23\u6807\u51c6\u6765\u770b&#xff0c;\u81f3\u4e8e\u662f\u5426C&#043;&#043;26&#xff0c;C&#043;&#043;29\u4f1a\u51fa\u7f51\u7edc\u5e93&#xff0c;\u6211\u4eec\u540c\u6837\u4e5f\u4e0d\u5f97\u800c\u77e5<\/li>\n<li>\u90a3\u4e48\u6211\u4eec\u5728\u8fdb\u884c\u7f51\u7edc\u7f16\u7a0b\u7684\u65f6\u5019&#xff0c;\u672c\u8d28\u662f\u5728\u7f16\u5199\u5e94\u7528\u5c42\u4ee3\u7801&#xff0c;\u9700\u8981\u4f20\u8f93\u5c42\u63d0\u4f9b\u652f\u6301&#xff0c;\u4f20\u8f93\u5c42\u4e2d\u6700\u4e3a\u6838\u5fc3\u7684\u534f\u8bae\u5c31\u662fUDP\u548cTCP&#xff0c;\u5e76\u4e14\u8fd9\u4e24\u4e2a\u534f\u8bae\u7684\u5dee\u522b\u8fd8\u6bd4\u8f83\u5927&#xff0c;\u6240\u4ee5Qt\u5c31\u63d0\u4f9b\u4e86\u4e24\u5957API&#xff0c;\u800c\u8981\u60f3\u4f7f\u7528Qt\u7f51\u7edc\u7f16\u7a0b\u7684API&#xff0c;\u5c31\u9700\u8981\u73b0\u5728.pro\u6587\u4ef6\u4e2d\u6dfb\u52a0network\u6a21\u5757&#xff0c;\u540c\u6837\u7684&#xff0c;\u4e4b\u524d\u6211\u4eec\u5b66\u4e60\u8fc7\u7684Qt\u5404\u79cd\u63a7\u4ef6&#xff0c;\u5404\u79cd\u5185\u5bb9\u4f8b\u5982\u4fe1\u53f7\u69fd&#xff0c;\u7a97\u53e3&#xff0c;\u4e8b\u4ef6\u7b49&#xff0c;\u90fd\u662f\u5305\u542b\u5728QtCore\u6a21\u5757\u4e2d\u7684&#xff0c;\u800c\u6211\u4eec\u6ca1\u6709\u624b\u52a8\u5305\u542bQtCore\u6a21\u5757\u5c31\u53ef\u4ee5\u4f7f\u7528Qt\u5404\u79cd\u63a7\u4ef6&#xff0c;\u5404\u79cd\u5185\u5bb9\u7684\u539f\u56e0\u662fQt\u5df2\u7ecf\u5e2e\u6211\u4eec\u81ea\u52a8\u5728.pro\u6587\u4ef6\u4e2d\u5305\u542b\u4e86QtCore\u6a21\u5757&#xff0c;\u90a3\u4e48\u4e3a\u4ec0\u4e48Qt\u8981\u5212\u5206\u51fa\u8fd9\u4e9b\u6a21\u5757\u5462&#xff1f;<\/li>\n<li>\u56e0\u4e3aQt\u672c\u8eab\u662f\u4e00\u4e2a\u975e\u5e38\u5e9e\u5927&#xff0c;\u5305\u7f57\u4e07\u8c61\u7684\u6846\u67b6&#xff0c;\u5982\u679c\u628a\u6240\u6709\u7684Qt\u7684\u529f\u80fd\u90fd\u653e\u5728\u4e00\u8d77&#xff0c;\u5373\u4f7f\u6211\u4eec\u53ea\u5199\u4e00\u4e2a\u7b80\u5355\u7684hello world&#xff0c;\u6b64\u65f6\u751f\u6210\u7684\u53ef\u6267\u884c\u7a0b\u5e8f\u4e5f\u4f1a\u5f88\u5e9e\u5927&#xff0c;\u800c\u5728\u8fd9\u4e2a\u53ef\u6267\u884c\u7a0b\u5e8f\u4e2d\u5c31\u5305\u542b\u4e86\u5927\u91cf\u6ca1\u6709\u4f7f\u7528\u7684\u529f\u80fd&#xff0c;\u6240\u4ee5\u6b64\u65f6\u5c31\u4f1a\u6709\u95ee\u9898\u4e86&#xff0c;\u4f8b\u5982\u5728\u5d4c\u5165\u5f0f\u7cfb\u7edf\u4e0a<\/li>\n<li>\u5bf9\u4e8e\u5d4c\u5165\u5f0f\u7cfb\u7edf\u6765\u8bb2&#xff0c;\u672c\u8eab\u5185\u5b58&#xff0c;\u786c\u76d8&#xff0c;CPU\u8d44\u6e90\u5c31\u7d27\u5f20&#xff0c;\u6b64\u65f6\u518d\u6765\u4e00\u4e2a\u5f88\u5e9e\u5927\u7684\u53ef\u6267\u884c\u7a0b\u5e8f&#xff0c;\u90a3\u4e48\u786c\u76d8\u4e2d\u90fd\u53ef\u80fd\u653e\u4e0d\u4e0b\u8fd9\u4e2a\u5f88\u5e9e\u5927\u7684\u53ef\u6267\u884c\u7a0b\u5e8f&#xff0c;\u6240\u4ee5Qt\u5f15\u5165\u4e86\u6a21\u5757\u5316\u5904\u7406&#xff0c;\u53ef\u4ee5\u4f7f\u5f97Qt\u751f\u6210\u7684\u53ef\u6267\u884c\u7a0b\u5e8f\u8f83\u4e3a\u8f7b\u91cf\u5316<\/li>\n<li>\u6240\u8c13\u7684\u6a21\u5757\u5316\u5904\u7406&#xff0c;\u4e5f\u5c31\u662f\u5c06\u4e0d\u540c\u7684\u529f\u80fd\u5c01\u88c5\u6210\u4e0d\u540c\u7684\u6a21\u5757&#xff0c;\u9ed8\u8ba4.pro\u6587\u4ef6\u4e2d\u53ea\u5305\u542b\u548cQt\u5404\u79cd\u63a7\u4ef6&#xff0c;\u5404\u79cd\u5185\u5bb9\u76f8\u5173\u7684QtCore\u6a21\u5757&#xff0c;\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u5bf9\u4e8e\u5176\u5b83\u989d\u5916\u7684\u6a21\u5757\u4e0d\u4f1a\u53c2\u4e0e\u7f16\u8bd1&#xff0c;\u6b64\u65f6\u53ea\u5305\u542bQtCore\u6a21\u5757\u7684\u4ee3\u7801\u751f\u6210\u7684Qt\u7684\u53ef\u6267\u884c\u7a0b\u5e8f\u5c31\u6bd4\u8f83\u8f7b\u91cf\u5316&#xff0c;\u540e\u9762\u5982\u679c\u9700\u8981\u4f7f\u7528\u5176\u5b83\u6a21\u5757\u7684\u529f\u80fd\u4e86&#xff0c;\u90a3\u4e48\u5c31\u5728.pro\u6587\u4ef6\u4e2d&#xff0c;\u5305\u542b\u5f15\u5165\u5bf9\u5e94\u7684\u6a21\u5757&#xff0c;\u628a\u5bf9\u5e94\u6a21\u5757\u7684\u529f\u80fd\u7ed9\u7f16\u8f91\u52a0\u8f7d\u8fdb\u6765\u5373\u53ef&#xff0c;\u6b64\u65f6\u4ee3\u7801\u4e2d\u5c31\u5305\u542b\u51e0\u4e2a\u6a21\u5757&#xff0c;\u800cQt\u662f\u4e00\u4e2a\u975e\u5e38\u5e9e\u5927&#xff0c;\u5305\u7f57\u4e07\u8c61\u7684\u6846\u67b6&#xff0c;\u4e00\u5171\u88ab\u5212\u5206\u4e86\u5927\u7ea660\u4e2a\u6a21\u5757&#xff0c;\u6240\u4ee5\u4ec5\u4ec5\u5305\u542b\u51e0\u4e2a\u6a21\u5757\u751f\u6210\u7684\u4ee3\u7801\u88ab\u7f16\u8bd1\u5f62\u6210\u7684\u53ef\u6267\u884c\u7a0b\u5e8f\u8fd8\u662f\u76f8\u8f83\u4e8e\u6bd4\u8f83\u8f7b\u91cf\u5316\u7684<\/li>\n<li>\u540c\u6837\u7684Qt\u8fd8\u63d0\u4f9b\u4e86\u9759\u6001\u5e93\u7684\u7248\u672c\u548c\u52a8\u6001\u5e93\u7684\u7248\u672c &#xff08;1&#xff09;\u5bf9\u4e8e\u9759\u6001\u5e93\u7684\u7248\u672c&#xff0c;\u90a3\u4e48\u5f15\u5165\u7684\u6a21\u5757\u90fd\u4f1a\u88ab\u7f16\u5165\u5230\u6700\u7ec8\u7684\u53ef\u6267\u884c\u7a0b\u5e8f\u4e2d &#xff08;2&#xff09;\u5bf9\u4e8e\u52a8\u6001\u5e93\u7684\u7248\u672c&#xff0c;\u5176\u5b9e\u662f\u5c06\u6bcf\u4e00\u4e2a\u6a21\u5757\u90fd\u7f16\u6210\u4e86\u4e00\u4e2a\u52a8\u6001\u5e93&#xff0c;\u6b64\u65f6\u5982\u679c\u6211\u4eec\u5982\u679c\u8981\u4f7f\u7528\u52a8\u6001\u5e93\u7684\u7248\u672c\u5c31\u9700\u8981\u5c06\u52a8\u6001\u5e93\u52a0\u8f7d\u5230\u5171\u4eab\u533a&#xff0c;\u5728\u6211\u4eec\u5f15\u5165\u597d\u6211\u4eec\u9700\u8981\u4f7f\u7528\u7684\u5bf9\u5e94\u7684\u6a21\u5757\u4e4b\u540e&#xff0c;\u5f15\u5165\u7684\u6a21\u5757\u5e76\u4e0d\u4f1a\u88ab\u7f16\u5165\u5230\u5bf9\u5e94\u7684\u53ef\u6267\u884c\u7a0b\u5e8f\u4e2d&#xff0c;\u800c\u662f\u6839\u636e\u52a8\u6001\u5e93\u7684\u7279\u6027&#xff0c;\u5728\u7a0b\u5e8f\u8fd0\u884c\u65f6&#xff0c;\u5982\u679c\u9700\u8981\u4f7f\u7528\u5230\u52a8\u6001\u5e93\u7684\u4ee3\u7801&#xff0c;\u90a3\u4e48\u62ff\u7740\u865a\u62df\u5730\u5740\u52a0\u4e0a\u5171\u4eab\u5e93\u7684\u8d77\u59cb\u5730\u5740\u5c31\u53ef\u4ee5\u627e\u5230\u5171\u4eab\u5e93\u5bf9\u5e94\u7684\u65b9\u6cd5\u6216\u8005\u53d8\u91cf\u8fdb\u884c\u4f7f\u7528 &#xff08;3&#xff09;\u5173\u4e8e\u52a8\u6001\u5e93\u548c\u9759\u6001\u5e93\u7684\u8bb2\u89e3&#xff0c;\u5982\u4e0b \u2026\u2026&#xff08;1&#xff09;\u3010linux\u3011linux\u57fa\u7840IO&#xff08;\u4e03&#xff09;\u9759\u6001\u5e93\u7684\u5236\u4f5c\u4e0e\u4f7f\u7528 \u2026\u2026&#xff08;2&#xff09;\u3010linux\u3011linux\u57fa\u7840IO&#xff08;\u516b&#xff09;\u52a8\u6001\u5e93\u7684\u5236\u4f5c\u4e0e\u4f7f\u7528 \u2026\u2026&#xff08;3&#xff09;\u3010linux\u3011linux\u57fa\u7840IO&#xff08;\u4e5d&#xff09;\u52a8\u6001\u5e93\u662f\u5982\u4f55\u88ab\u52a0\u8f7d\u7684<\/li>\n<h3>\u4e8c\u3001UDP\u5bf9\u5e94QUdpSocket\u548cQNetworkDatagram\u7684\u63a5\u53e3\u4ecb\u7ecd<\/h3>\n<li>\u5728Qt\u4e2d\u7ed9UDP\u534f\u8bae\u7684\u4f7f\u7528\u5c01\u88c5\u4e86\u4e00\u5957API&#xff0c;Qt\u5bf9\u4e8eUDP\u4e5f\u5c01\u88c5\u6210\u4e86\u7c7b&#xff0c;\u5206\u522b\u662fQUdpSocket\u548cQNetworkDatagram &#xff08;1&#xff09;QUdpSocket\u8868\u793a\u4e00\u4e2aUDP\u7684socket\u6587\u4ef6&#xff0c;\u8fd9\u6837\u8bf4\u53ef\u80fd\u6709\u70b9\u62bd\u8c61&#xff0c;\u90a3\u4e48\u5c0f\u7f16\u901a\u4fd7\u4e00\u70b9QUdpSocket\u548cUDP\u7684\u521b\u5efa&#xff0c;\u7ed1\u5b9a&#xff0c;\u53d1\u9001&#xff0c;\u8bfb\u53d6\u6709\u5173 &#xff08;2&#xff09;QNetworkDatagram\u8868\u793a\u4e00\u4e2aUDP\u7684\u6570\u636e\u62a5&#xff0c;\u522b\u5fd8\u4e86UDP\u662f\u9762\u5411\u6570\u636e\u62a5\u7684&#xff0c;\u6240\u4ee5Qt\u4e2d\u4f7f\u7528QNetworkDatagram\u7c7b\u8868\u793aUDP\u7684\u6570\u636e\u62a5<\/li>\n<li>\u4e0b\u9762\u6211\u4eec\u6765\u8ba4\u8bc6\u4e00\u4e0bQUdpSocket&#xff0c;\u5982\u4e0b\u662f\u76f8\u5173\u7684\u63a5\u53e3 &#xff08;1&#xff09;bind(const QHostAddress&amp;, quint16)&#xff0c;\u7528\u4e8e\u7ed9\u670d\u52a1\u5668\u7ed1\u5b9aIP\u5730\u5740&#xff0c;\u7aef\u53e3\u53f7 &#xff08;2&#xff09;receiveDatagram()&#xff0c;\u7528\u4e8e\u8bfb\u53d6\u4e00\u4e2aUDP\u6570\u636e\u62a5&#xff0c;\u81ea\u7136\u7684\u8fd4\u56de\u503c\u5c31\u662fQNetworkDatagram &#xff08;3&#xff09;writeDatagram(const QNetworkDatagram&amp;)&#xff0c;\u7528\u4e8e\u53d1\u9001\u4e00\u4e2aUDP\u6570\u636e\u62a5 &#xff08;4&#xff09;readyRead&#xff0c;\u8fd9\u4e2areadyRead\u662f\u4e00\u4e2a\u4fe1\u53f7 \u2026\u2026&#xff08;1&#xff09;\u5f53socket\u6536\u5230\u8bf7\u6c42\u7684\u65f6\u5019&#xff0c;QUdpSocket\u5c31\u4f1a\u89e6\u53d1\u8fd9\u4e2a\u4fe1\u53f7&#xff0c;\u6b64\u65f6\u5c31\u53ef\u4ee5\u5728\u8fd9\u4e2areadyRead\u4fe1\u53f7\u7ed1\u5b9a\u7684\u5bf9\u5e94\u7684\u69fd\u51fd\u6570\u4e2d\u5b8c\u6210\u8bfb\u53d6\u8bf7\u6c42\u7684\u64cd\u4f5c\u4e86 \u2026\u2026&#xff08;2&#xff09;\u90a3\u4e48\u8fd9\u91cc\u5bf9\u6bd4\u4e8e\u5728Linux\u4e2d\u9ed8\u8ba4\u91c7\u7528\u7684\u963b\u585e\u5f0f\u8bfb\u53d6\u6570\u636e\u6765\u8bb2&#xff0c;\u4e00\u65e6Linux\u4e2d\u8c03\u7528\u4e86read&#xff0c;recvfrom\u8fd9\u6837\u7684\u8bfb\u53d6\u63a5\u53e3&#xff0c;\u4e00\u65e6\u5bf9\u7aef\u5ba2\u6237\u7aef\u6ca1\u6709\u7ed9\u6211\u53d1\u9001\u8bf7\u6c42&#xff0c;\u90a3\u4e48\u6b64\u65f6\u670d\u52a1\u5668\u5c31\u53ea\u80fd\u963b\u585e\u7b49\u5f85&#xff0c;\u4e00\u65e6\u963b\u585e\u7b49\u5f85&#xff0c;\u5c31\u5e26\u6765\u4e86\u6d88\u8017&#xff0c;\u4e0e\u5176\u963b\u585e\u7b49\u5f85&#xff0c;\u5012\u4e0d\u5982\u53bb\u505a\u4e00\u4e0b\u5176\u5b83\u7684\u4e8b\u60c5&#xff0c;\u800c\u5728Qt\u4e2d&#xff0c;\u6ca1\u6709\u91c7\u53d6\u8fd9\u79cd\u963b\u585e\u5f0f\u8bfb\u53d6\u7684\u65b9\u5f0f&#xff0c;\u800c\u662f\u5de7\u5999\u7684\u501f\u52a9\u4fe1\u53f7\u69fd&#xff0c;\u5c31\u5929\u7136\u7684\u8fbe\u6210\u4e86\u4e8b\u4ef6\u9a71\u52a8\u8fd9\u6837\u7684\u4e00\u79cd\u7f51\u7edc\u7f16\u7a0b\u7684\u65b9\u5f0f<\/li>\n<li>\u4e0b\u9762\u6211\u4eec\u6765\u8ba4\u8bc6\u4e00\u4e0bQNetworkDatagram&#xff0c;\u5982\u4e0b\u662f\u76f8\u5173\u63a5\u53e3 &#xff08;1&#xff09;QNetworkDatagram(const QByteArray&amp;, const QHostArray&amp;, quint16)&#xff0c;\u6784\u9020\u51fd\u6570&#xff0c;\u901a\u8fc7\u4f20\u53c2QByteArray&#xff0c;\u76ee\u6807IP\u5730\u5740&#xff0c;\u76ee\u6807\u7aef\u53e3\u53f7port\u6765\u6784\u9020\u4e00\u4e2aUDP\u6570\u636e\u62a5&#xff0c;\u5e76\u4e14UDP\u6570\u636e\u62a5\u7684\u6784\u5efa\u901a\u5e38\u7528\u4e8e\u53d1\u9001\u6570\u636e\u7684\u65f6\u5019 &#xff08;2&#xff09;data&#xff0c;\u7528\u4e8e\u83b7\u53d6UDP\u6570\u636e\u62a5\u5185\u90e8\u7684\u6709\u6548\u8f7d\u8377&#xff0c;\u4e5f\u5c31\u662f\u7528\u6237\u5b9e\u9645\u8981\u53d1\u9001\u7684\u6570\u636e&#xff0c;\u4ee5QByteArray\u7684\u5f62\u5f0f\u8fd4\u56de &#xff08;3&#xff09;senderAddress&#xff0c;\u7528\u4e8e\u83b7\u53d6\u6570\u636e\u62a5\u4e2d\u5bf9\u7aef\u7684IP\u5730\u5740 &#xff08;4&#xff09;senderPort&#xff0c;\u7528\u4e8e\u83b7\u53d6\u6570\u636e\u62a5\u4e2d\u5bf9\u7aef\u7684\u7aef\u53e3\u53f7port<\/li>\n<h3>\u4e09\u3001UDP\u56de\u663e\u670d\u52a1\u5668\u7684\u5b9e\u73b0<\/h3>\n<li>\u4e0b\u9762\u6211\u4eec\u5c31\u6765\u7f16\u5199\u4e00\u4e2a\u5e26\u6709\u754c\u9762\u7684UDP\u56de\u663e\u670d\u52a1\u5668&#xff0c;\u5176\u5b9e\u8fd9\u91cc\u6211\u4eec\u8981\u6e05\u695a&#xff0c;\u4e00\u4e2a\u6b63\u7ecf\u7684\u670d\u52a1\u5668\u5f88\u5c11\u4f1a\u6709\u56fe\u5f62\u5316\u754c\u9762&#xff0c;\u56e0\u4e3a\u56fe\u5f62\u5316\u754c\u9762\u4f1a\u7ed9\u670d\u52a1\u5668\u7684\u6027\u80fd\u5e26\u6765\u6d88\u8017&#xff0c;\u9020\u6210\u670d\u52a1\u5668\u670d\u52a1\u7684\u5ba2\u6237\u7aef\u7684\u6570\u91cf\u51cf\u5c11&#xff0c;\u800c\u670d\u52a1\u5668\u7684\u4f5c\u7528\u5c31\u662f\u7ed9\u5ba2\u6237\u7aef\u8fdb\u884c\u670d\u52a1\u5668&#xff0c;\u6240\u4ee5\u670d\u52a1\u5668\u4e00\u822c\u90fd\u662f\u547d\u4ee4\u884c\u7684&#xff0c;\u8fd9\u91cc\u6211\u4eec\u4e3a\u4e86\u4fbf\u4e8e\u6f14\u793a\u73b0\u8c61&#xff0c;\u6240\u4ee5\u7ed9\u670d\u52a1\u5668\u5e26\u6709\u56fe\u5f62\u5316\u754c\u9762<\/li>\n<li>\u540c\u6837\u7684\u6211\u4eec\u4e5f\u8981\u8ba4\u8bc6\u5230&#xff0c;\u867d\u7136Qt\u7528\u4e8e\u7f16\u5199\u56fe\u5f62\u5316\u754c\u9762\u7a0b\u5e8f&#xff0c;\u4f46\u662fQt\u540c\u6837\u4e5f\u53ef\u4ee5\u7f16\u5199\u63a7\u5236\u53f0\u7a0b\u5e8f\u7684&#xff0c;\u4e5f\u5c31\u662f\u53ef\u4ee5\u7f16\u5199\u547d\u4ee4\u884c\u7684\u670d\u52a1\u5668&#xff0c;\u6240\u4ee5\u63a5\u4e0b\u6765\u6211\u4eec\u521b\u5efa\u4e00\u4e2a\u9879\u76ee\u540d\u4e3aUdpServer&#xff0c;\u57fa\u7c7b\u4e3aQWidget&#xff0c;\u6d3e\u751f\u7c7b\u4e3aWidget\u7684\u9879\u76ee&#xff0c;\u63a5\u4e0b\u6765\u6211\u4eec\u70b9\u51fbui\u6587\u4ef6&#xff0c;\u8fdb\u5165Qt Designer <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260730053255-6a6ae2071a387.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/li>\n<li>\u7531\u4e8e\u6211\u4eec\u8981\u5b9e\u73b0\u7684\u662fUDP\u56de\u663e\u670d\u52a1\u5668&#xff0c;\u4e5f\u5c31\u662f\u5c06\u6765\u81ea\u5ba2\u6237\u7aef\u7684\u4fe1\u606f\u56de\u663e\u5230\u754c\u9762\u4e0a&#xff0c;\u800c\u6d88\u606f\u662f\u6709\u591a\u6761\u7684&#xff0c;\u90a3\u4e48\u6211\u4eec\u53ef\u4ee5\u5c06\u6bcf\u4e00\u6761\u6d88\u606f\u4f5c\u4e3a\u4e00\u4e2aitem\u653e\u5230QListWidget\u5217\u8868\u4e2d\u4f5c\u4e3a\u4e00\u4e2a\u5143\u7d20&#xff0c;\u6240\u4ee5\u591a\u6761\u6d88\u606f\u5c31\u5728QListWidget\u5217\u8868\u4e0a\u6dfb\u52a0\u591a\u4e2a\u5143\u7d20item&#xff0c;\u4ee5\u5217\u8868\u5f62\u5f0f\u663e\u793a\u6d88\u606f\u6b63\u597d \u5173\u4e8eQListWidget\u7684\u8bb2\u89e3&#xff0c;\u8be6\u60c5\u8bf7\u70b9\u51fb&lt;\u2014\u2014&#xff0c;\u6240\u4ee5\u6b64\u65f6\u6211\u4eec\u62d6\u62fd\u5de6\u4fa7\u7ea2\u6846\u5185\u7684QListWidget\u5217\u8868\u63a7\u4ef6&#xff0c;\u7136\u540e\u8c03\u6574\u6210\u4e0a\u56fe\u754c\u9762\u5373\u53ef&#xff0c;objectName\u4fdd\u6301\u4e0d\u53d8 <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260730053255-6a6ae207add6e.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" width=\"500\" \/><\/li>\n<li>\u7531\u4e8e\u6211\u4eec\u8981\u521b\u5efaUDP\u670d\u52a1\u5668&#xff0c;\u81ea\u7136\u7684\u5c31\u8981\u4f7f\u7528QUdpSocket\u521b\u5efa\u670d\u52a1\u5668&#xff0c;\u90a3\u4e48\u6211\u4eec\u5148\u5305\u542b\u4e00\u4e0bQUdpSocket\u5bf9\u5e94\u7684\u5934\u6587\u4ef6#include &lt;QUdpSocket&gt;&#xff0c;\u53ef\u662f\u6b64\u65f6\u5c0f\u7f16\u4e00\u8fdb\u884c\u5305\u542b&#xff0c;\u5c31\u63d0\u793a\u627e\u4e0d\u5230#include &lt;QUdpSocket&gt;\u5934\u6587\u4ef6&#xff0c;\u8fd9\u662f\u4e3a\u4ec0\u4e48\u5462&#xff1f;\u4e4b\u524d\u5305\u542b\u63a7\u4ef6\u4ec0\u4e48\u7684\u5934\u6587\u4ef6\u90fd\u6ca1\u6709\u95ee\u9898 <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260730053255-6a6ae207bdef7.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" width=\"300\" \/><\/li>\n<li>\u5176\u5b9e\u8fd9\u662f\u7531\u4e8e\u6211\u4eec\u4e4b\u524d\u8bb2\u89e3\u7684Qt\u6a21\u5757\u5316\u7684\u8bbe\u8ba1&#xff0c;\u5305\u542b\u63a7\u4ef6\u7684\u5934\u6587\u4ef6\u6ca1\u6709\u95ee\u9898&#xff0c;\u662f\u56e0\u4e3aQt\u9ed8\u8ba4\u5728.pro\u6587\u4ef6\u4e2d\u5df2\u7ecf\u5f15\u5165\u4e86\u548c\u63a7\u4ef6\u76f8\u5173\u7684\u6a21\u5757QtCort\u4e86&#xff0c;\u800c\u8fd9\u91cc\u7531\u4e8e\u6211\u4eec\u8981\u521b\u5efaUDP\u670d\u52a1\u5668&#xff0c;\u4e5f\u5c31\u610f\u5473\u7740\u8981\u4f7f\u7528Qt\u7f51\u7edc\u6a21\u5757\u7684\u529f\u80fd&#xff0c;\u6240\u4ee5\u6b64\u65f6\u5c31\u8981\u7ed9.pro\u6587\u4ef6\u4e2d\u5f15\u5165\u7f51\u7edc\u6a21\u5757\u76f8\u5173\u7684network&#xff0c;\u90a3\u4e48\u6211\u4eec\u5728.pro\u6587\u4ef6\u7684\u7b2c\u4e00\u884c\u5728core gui\u540e\u9762\u4f7f\u7528\u7a7a\u683c\u95f4\u9694&#xff0c;\u7136\u540e\u6dfb\u52a0network\u5373\u53ef <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260730053255-6a6ae207add6e.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" width=\"500\" \/><\/li>\n<li>\u53ef\u662f\u5c0f\u7f16&#xff0c;\u6b64\u65f6\u5c3d\u7ba1\u6211\u4eec\u5728.pro\u6587\u4ef6\u4e2d\u5f15\u5165\u4e86\u7f51\u7edc\u6a21\u5757\u76f8\u5173\u7684network&#xff0c;\u53ef\u662f\u4e3a\u4ec0\u4e48#include &lt;QUdpSocket&gt;\u5934\u6587\u4ef6\u8fd8\u662f\u63d0\u793a\u627e\u4e0d\u5230\u5462&#xff1f;\u5176\u5b9e\u8fd9\u662f\u7531\u4e8e.pro\u6587\u4ef6\u8fd8\u6ca1\u6709\u88ab\u89e3\u6790&#xff0c;\u4e5f\u5c31\u610f\u5473\u7740\u6b64\u65f6\u7f51\u7edc\u6a21\u5757\u7684\u76f8\u5173\u529f\u80fd\u8fd8\u6ca1\u6709\u771f\u6b63\u5f15\u5165&#xff0c;\u6240\u4ee5\u6211\u4eec\u8be5\u5982\u4f55\u8ba9Qt\u89e3\u6790.pro\u6587\u4ef6\u5f15\u5165\u7f51\u7edc\u6a21\u5757\u7684\u76f8\u5173\u529f\u80fd\u5462&#xff1f; <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260730053255-6a6ae207cd979.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" width=\"500\" \/><\/li>\n<li>\u6b64\u65f6\u6211\u4eec\u5de6\u4e0b\u89d2\u76f4\u63a5\u8fd0\u884c\u9879\u76ee&#xff0c;\u6b64\u65f6Qt\u5c31\u4f1a\u81ea\u52a8\u89e3\u6790.pro\u6587\u4ef6\u5f15\u5165\u7f51\u7edc\u6a21\u5757\u7684\u76f8\u5173\u529f\u80fd&#xff0c;\u5982\u4e0a&#xff0c;\u6b64\u65f6#include &lt;QUdpSocket&gt;\u5934\u6587\u4ef6\u5c31\u627e\u5230\u4e86&#xff0c;\u4e5f\u5c31\u610f\u5473\u8fd9\u6b64\u65f6\u6211\u4eec\u53ef\u4ee5\u6b63\u5e38\u4f7f\u7528Qt\u7f51\u7edc\u76f8\u5173\u7684\u529f\u80fd\u4e86<\/li>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">ifndef<\/span> <span class=\"token expression\">WIDGET_H<\/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\">WIDGET_H<\/span><\/span><\/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;QWidget&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;QUdpSocket&gt;<\/span><\/span><\/p>\n<p>QT_BEGIN_NAMESPACE<br \/>\n<span class=\"token keyword\">namespace<\/span> Ui <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Widget<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\nQT_END_NAMESPACE<\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Widget<\/span> <span class=\"token operator\">:<\/span> <span class=\"token base-clause\"><span class=\"token keyword\">public<\/span> <span class=\"token class-name\">QWidget<\/span><\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    Q_OBJECT<\/p>\n<p><span class=\"token keyword\">public<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token function\">Widget<\/span><span class=\"token punctuation\">(<\/span>QWidget <span class=\"token operator\">*<\/span>parent <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">nullptr<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token operator\">~<\/span><span class=\"token function\">Widget<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">private<\/span><span class=\"token operator\">:<\/span><br \/>\n    Ui<span class=\"token double-colon punctuation\">::<\/span>Widget <span class=\"token operator\">*<\/span>ui<span class=\"token punctuation\">;<\/span><\/p>\n<p>    QUdpSocket<span class=\"token operator\">*<\/span> socket<span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">endif<\/span> <span class=\"token comment\">\/\/ WIDGET_H<\/span><\/span><\/p>\n<li>\u90a3\u4e48\u5728Widget\u7684.h\u5934\u6587\u4ef6\u4e2d&#xff0c;\u6211\u4eec\u58f0\u660e\u4e00\u4e2aUDP\u7684\u670d\u52a1\u5668&#xff0c;\u6240\u4ee5\u8fd9\u91cc\u6211\u4eec\u58f0\u660eQUdpSocket*\u6307\u9488\u7c7b\u578b\u7684\u79c1\u6709\u6210\u5458\u53d8\u91cfsocket&#xff0c;\u540c\u6837\u8fd9\u4e5f\u662f\u8fdb\u884c\u7f51\u7edc\u7f16\u7a0b\u7684\u5e38\u7528\u5199\u6cd5<\/li>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&#034;widget.h&#034;<\/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\">&#034;ui_widget.h&#034;<\/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;QMessageBox&gt;<\/span><\/span><\/p>\n<p><span class=\"token class-name\">Widget<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">Widget<\/span><span class=\"token punctuation\">(<\/span>QWidget <span class=\"token operator\">*<\/span>parent<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token operator\">:<\/span> <span class=\"token function\">QWidget<\/span><span class=\"token punctuation\">(<\/span>parent<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">,<\/span> <span class=\"token function\">ui<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">new<\/span> Ui<span class=\"token double-colon punctuation\">::<\/span>Widget<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    ui<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">setupUi<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    socket <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token function\">QUdpSocket<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">this<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token function\">setWindowTitle<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u670d\u52a1\u5668&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token function\">connect<\/span><span class=\"token punctuation\">(<\/span>socket<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>QUdpSocket<span class=\"token double-colon punctuation\">::<\/span>readyRead<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>Widget<span class=\"token double-colon punctuation\">::<\/span>processRequest<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">bool<\/span> ret <span class=\"token operator\">&#061;<\/span> socket<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">bind<\/span><span class=\"token punctuation\">(<\/span>QHostAddress<span class=\"token double-colon punctuation\">::<\/span>Any<span class=\"token punctuation\">,<\/span> <span class=\"token number\">9090<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>ret <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">QMessageBox<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">critical<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\u670d\u52a1\u5668\u542f\u52a8\u51fa\u9519&#034;<\/span><span class=\"token punctuation\">,<\/span> socket<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">errorString<\/span><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 keyword\">return<\/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 class-name\">Widget<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token operator\">~<\/span><span class=\"token function\">Widget<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">delete<\/span> ui<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token class-name\">Widget<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">processRequest<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260730053255-6a6ae207dd11f.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<li>\u5728Widget\u7684.cpp\u6e90\u6587\u4ef6\u4e2d&#xff0c;\u5728Widget\u7684\u6784\u9020\u51fd\u6570\u4e2d&#xff0c;\u6211\u4eec\u5c31\u53ef\u4ee5\u7ed9socket\u521b\u5efa\u5b9e\u4f8b&#xff0c;\u4e5f\u5c31\u662fnew\u4e00\u4e2aQUdpSocket\u7684\u5bf9\u8c61\u7ed9socket&#xff0c;\u6b64\u65f6\u6211\u4eec\u6765\u770b\u5bf9\u4e8eQUdpSocket\u7684\u6784\u9020\u51fd\u6570\u4e2d\u51fa\u73b0\u4e86\u6211\u4eec\u719f\u6089\u7684parent&#xff0c;\u4e5f\u5c31\u610f\u5473\u7740\u6211\u4eec\u53ef\u4ee5\u4f20\u5165this\u6307\u9488&#xff0c;\u6307\u5b9aUDP\u5bf9\u5e94socket\u7684\u7236\u5143\u7d20\u4e3athis\u6307\u9488\u5bf9\u5e94\u7684Widget\u7a97\u53e3&#xff0c;\u5c06socket\u5bf9\u8c61\u6302\u63a5\u5230\u5bf9\u8c61\u6811\u4e0a&#xff0c;\u90a3\u4e48\u5728Widget\u7a97\u53e3\u88ab\u5173\u95ed\u9500\u6bc1\u7684\u65f6\u5019&#xff0c;\u5c31\u4f1a\u81ea\u52a8\u8c03\u7528delete\u53bb\u91ca\u653esocket&#xff0c;\u5bf9\u8c61\u6811\u673a\u5236\u4e5f\u53ef\u4ee5\u5b8c\u7f8e\u7684\u5728Qt\u7f51\u7edc\u7f16\u7a0b\u4e2d\u8fdb\u884c\u4f7f\u7528&#xff0c;\u6240\u4ee5\u8fd9\u91cc\u5bf9\u4e8eQUdpSocket\u7684\u6784\u9020\u51fd\u6570\u6211\u4eec\u4f20\u5165this\u6307\u9488&#xff0c;\u90a3\u4e48\u662f\u5426\u6211\u4eec\u53ef\u4ee5\u4ec0\u4e48\u90fd\u4e0d\u4f20\u5462&#xff1f;<\/li>\n<li>\u53ef\u4ee5&#xff0c;\u4e5f\u5c31\u610f\u5473\u7740\u6b64\u65f6\u6211\u4eec\u4e0d\u4f7f\u7528Qt\u7684\u5bf9\u8c61\u6811\u673a\u5236&#xff0c;\u6b64\u65f6\u5bf9\u4e8esocket\u7684\u751f\u547d\u5468\u671f\u5c31\u9700\u8981\u6211\u4eec\u624b\u52a8\u8fdb\u884c\u7ba1\u7406&#xff0c;\u90a3\u4e48\u5c31\u8981\u5728Widget\u7684\u6790\u6784\u51fd\u6570\u4e2d\u624b\u52a8delete\u8fd9\u4e2asocket\u8fdb\u884c\u6790\u6784&#xff0c;\u5176\u5b9e\u8fd9\u91cc\u6bd4\u8f83\u63a8\u8350\u7684\u65b9\u6cd5\u8fd8\u662f\u4f7f\u7528\u5bf9\u8c61\u6811\u673a\u5236&#xff0c;\u5bf9\u4e8eQUdpSocket\u7684\u6784\u9020\u51fd\u6570\u6211\u4eec\u4f20\u5165this\u6307\u9488&#xff0c;\u8ba9Qt\u7684\u5bf9\u8c61\u6811\u5e2e\u6211\u4eec\u7ba1\u7406socket\u7684\u751f\u547d\u5468\u671f&#xff0c;\u63a5\u4e0b\u6765\u4e3a\u4e86\u533a\u5206\u670d\u52a1\u5668\u4e0e\u5ba2\u6237\u7aef&#xff0c;\u90a3\u4e48\u6211\u4eec\u4f7f\u7528setWindowTitle\u7ed9\u670d\u52a1\u5668\u8bbe\u7f6e\u6807\u9898\u4e3a\u670d\u52a1\u5668\u5373\u53ef<\/li>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">ifndef<\/span> <span class=\"token expression\">WIDGET_H<\/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\">WIDGET_H<\/span><\/span><\/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;QWidget&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;QUdpSocket&gt;<\/span><\/span><\/p>\n<p>QT_BEGIN_NAMESPACE<br \/>\n<span class=\"token keyword\">namespace<\/span> Ui <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Widget<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\nQT_END_NAMESPACE<\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Widget<\/span> <span class=\"token operator\">:<\/span> <span class=\"token base-clause\"><span class=\"token keyword\">public<\/span> <span class=\"token class-name\">QWidget<\/span><\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    Q_OBJECT<\/p>\n<p><span class=\"token keyword\">public<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token function\">Widget<\/span><span class=\"token punctuation\">(<\/span>QWidget <span class=\"token operator\">*<\/span>parent <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">nullptr<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token operator\">~<\/span><span class=\"token function\">Widget<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">private<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">processRequest<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">private<\/span><span class=\"token operator\">:<\/span><br \/>\n    Ui<span class=\"token double-colon punctuation\">::<\/span>Widget <span class=\"token operator\">*<\/span>ui<span class=\"token punctuation\">;<\/span><\/p>\n<p>    QUdpSocket<span class=\"token operator\">*<\/span> socket<span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">endif<\/span> <span class=\"token comment\">\/\/ WIDGET_H<\/span><\/span><\/p>\n<li>\u63a5\u4e0b\u6765\u6211\u4eec\u5c31\u8981\u5148\u8fde\u63a5\u4fe1\u53f7\u69fd\u4e86&#xff0c;\u5f53socket\u6536\u5230\u8bf7\u6c42\u62a5\u6587\u4e4b\u540e&#xff0c;\u4f1a\u89e6\u53d1readyRead\u4fe1\u53f7&#xff0c;\u90a3\u4e48\u6211\u4eec\u5c31\u53ef\u4ee5\u4f7f\u7528connect\u7ed9\u8fd9\u4e2areadyRead\u4fe1\u53f7\u7ed1\u5b9a\u5bf9\u5e94\u7684\u69fd\u51fd\u6570processRequest&#xff0c;\u6240\u4ee5\u6211\u4eec\u5728Widget\u7684.h\u6587\u4ef6\u4e2d\u58f0\u660e\u4e00\u4e0b\u69fd\u51fd\u6570processRequest&#xff0c;\u7136\u540e\u5728Widget\u7684.cpp\u6e90\u6587\u4ef6\u4e2d\u5b9a\u4e49\u4e00\u4e0b\u5bf9\u5e94\u7684\u69fd\u51fd\u6570processRequest\u5373\u53ef&#xff0c;\u5bf9\u4e8e\u8fd9\u4e2a\u69fd\u51fd\u6570processRequest\u4e5f\u5c31\u662f\u7528\u4e8e\u8bfb\u53d6\u62a5\u6587\u6570\u636e&#xff0c;\u8fdb\u884c\u4e1a\u52a1\u903b\u8f91\u7684\u5904\u7406&#xff0c;\u518d\u5c06\u76f8\u5e94\u62a5\u6587\u53d1\u9001\u7ed9\u5ba2\u6237\u7aef&#xff0c;\u90a3\u4e48\u6b64\u65f6\u95ee\u9898\u6765\u4e86&#xff0c;\u6709\u6ca1\u6709\u53ef\u80fd\u6b64\u65f6\u6ca1\u6709\u8bf7\u6c42\u62a5\u6587&#xff0c;\u8fdb\u800c\u9020\u6210\u8fd9\u91cc\u76f4\u63a5\u8fdb\u884c\u8bfb\u53d6\u8bf7\u6c42\u62a5\u6587\u963b\u585e\u5462&#xff1f;<\/li>\n<li>\u4e0d\u4f1a&#xff0c;\u4e00\u5b9a\u4e0d\u4f1a&#xff0c;\u6b64\u65f6\u901a\u8fc7\u4fe1\u53f7\u69fd\u673a\u5236&#xff0c;\u8fdb\u884c\u8bfb\u53d6\u7684\u8bf7\u6c42\u62a5\u6587\u4e00\u5b9a\u4e0d\u4f1a\u88ab\u963b\u585e&#xff0c;\u56e0\u4e3aQt\u7684\u673a\u5236\u53ef\u4ee5\u4fdd\u8bc1\u5f53socket\u6536\u5230\u8bf7\u6c42\u62a5\u6587\u4e4b\u540e&#xff0c;\u4f1a\u89e6\u53d1readyRead\u4fe1\u53f7&#xff0c;\u6240\u4ee5\u6b64\u65f6\u5728\u5bf9\u5e94\u7684\u69fd\u51fd\u6570processRequest\u4e2d\u76f4\u63a5\u8fdb\u884c\u8bfb\u53d6\u62a5\u6587\u6570\u636e\u5c31\u53ef\u4ee5\u5c06\u62a5\u6587\u6570\u636e\u8bfb\u53d6\u4e0a\u6765&#xff0c;\u8fd9\u4e5f\u5c31\u5b8c\u7f8e\u7684\u4f53\u73b0\u4e86Qt\u4e2d\u57fa\u4e8e\u4e8b\u4ef6\u9a71\u52a8\u8fd9\u6837\u7684\u4e00\u79cd\u7f51\u7edc\u7f16\u7a0b\u65b9\u5f0f<\/li>\n<li>\u6240\u4ee5\u6b64\u65f6\u6211\u4eec\u4f7f\u7528connect\u5c06socket\u7684readyRead\u4fe1\u53f7\u7ed1\u5b9a\u5230\u5bf9\u5e94Widget\u4e2d\u7684\u69fd\u51fd\u6570processRequest\u4e0a\u5373\u53ef&#xff0c;\u6b64\u65f6\u5982\u679c\u89e6\u53d1readyRead\u4fe1\u53f7&#xff0c;\u5c31\u4f1a\u6267\u884c\u7ed1\u5b9a\u7684\u69fd\u51fd\u6570processRequest&#xff0c;\u63a5\u4e0b\u6765\u6211\u4eec\u4f7f\u7528bind\u7ed1\u5b9aIP\u5730\u5740\u548c\u7aef\u53e3\u53f7port\u5373\u53ef<\/li>\n<li>\u90a3\u4e48\u5bf9\u4e8e\u7ed1\u5b9a\u7684IP\u5730\u5740&#xff0c;\u8fd9\u91cc\u6211\u4eec\u7ed1\u5b9aQHostAddress\u63d0\u4f9b\u7684QHostAddress::And&#xff0c;\u5176\u5b9e\u8fd9\u4e2aQHostAddress::And\u672c\u8d28\u4e0a\u5c31\u662f0.0.0.0&#xff0c;\u6211\u4eec\u5f53\u524d\u662f\u4e00\u4e2a\u670d\u52a1\u5668&#xff0c;\u7ed9\u670d\u52a1\u5668\u7ed1\u5b9a\u4e860.0.0.0\u8fd9\u4e2aIP\u5730\u5740&#xff0c;\u7531\u4e8e\u4e00\u4e2a\u4e3b\u673a\u4e0a\u53ef\u80fd\u6709\u591a\u4e2a\u7f51\u5361&#xff0c;\u4e00\u4e2a\u7f51\u5361\u5bf9\u5e94\u4e00\u4e2aIP\u5730\u5740&#xff0c;\u6240\u4ee5\u4e00\u4e2a\u4e3b\u673a\u4e0a\u53ef\u80fd\u6709\u591a\u4e2aIP\u5730\u5740&#xff0c;\u800c\u6bcf\u4e00\u4e2aIP\u5730\u5740\u90fd\u6709\u53ef\u80fd\u63a5\u6536\u5230\u6765\u81ea\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u62a5\u6587&#xff0c;\u5982\u679c\u670d\u52a1\u5668\u4ec5\u4ec5\u7ed1\u5b9a\u4e86\u67d0\u4e00\u4e2a\u5177\u4f53\u7684IP&#xff0c;\u90a3\u4e48\u6b64\u65f6\u670d\u52a1\u5668\u4ec5\u4ec5\u53ea\u80fd\u6536\u5230\u8fd9\u4e00\u4e2aIP\u4e0a\u6765\u81ea\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u62a5\u6587&#xff0c;\u800c\u4e3b\u673a\u4e0a\u6709\u591a\u4e2aIP\u5730\u5740\u5440&#xff0c;\u90a3\u4e48\u5176\u5b83\u7684IP\u5730\u5740\u4e0a\u6765\u81ea\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u62a5\u6587\u5c31\u63a5\u6536\u4e0d\u5230\u4e86&#xff0c;\u6240\u4ee5\u6211\u670d\u52a1\u5668\u60f3\u8981\u63a5\u6536\u5230\u8be5\u5982\u4f55\u505a\u5462&#xff1f;<\/li>\n<li>\u7ed9\u670d\u52a1\u5668\u7ed1\u5b9a\u4e860.0.0.0\u8fd9\u4e2aIP\u5730\u5740\u5373\u53ef&#xff0c;\u6b64\u65f6\u64cd\u4f5c\u7cfb\u7edf\u53ef\u4ee5\u4fdd\u8bc1\u5bf9\u4e8e\u8fd9\u53f0\u4e3b\u673a\u4e0a\u7684\u6240\u6709IP\u5730\u5740\u6536\u5230\u7684\u6765\u81ea\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u62a5\u6587\u90fd\u53ef\u4ee5\u88ab\u670d\u52a1\u5668\u63a5\u6536\u5230&#xff0c;\u90a3\u4e48\u670d\u52a1\u5668\u53d1\u9001\u62a5\u6587\u7684\u65f6\u5019&#xff0c;\u4f1a\u4f7f\u7528\u4e3b\u673a\u4e0a\u7684\u54ea\u4e00\u4e2aIP\u5730\u5740\u5462&#xff1f;\u6211\u4eec\u4e0d\u9700\u8981\u5173\u5fc3<\/li>\n<li>\u5982\u679c\u5f53\u524d\u670d\u52a1\u5668\u7684\u4e3b\u673a\u4e0a\u53ea\u6709\u4e00\u4e2aIP\u5730\u5740&#xff0c;\u90a3\u4e48\u7cfb\u7edf\u5c31\u4f1a\u91c7\u7528\u8fd9\u4e2aIP\u5730\u5740\u4f5c\u4e3a\u6e90IP\u53d1\u9001\u62a5\u6587&#xff0c;\u5982\u679c\u5f53\u524d\u670d\u52a1\u5668\u4e3b\u673a\u4e0a\u6709\u591a\u4e2aIP\u5730\u5740&#xff0c;\u90a3\u4e48\u7531\u7cfb\u7edf\u81ea\u52a8\u9009\u62e9\u5176\u4e2d\u7684\u4e00\u4e2aIP\u5730\u5740\u4f5c\u4e3a\u6e90IP\u53d1\u9001\u62a5\u6587&#xff0c;\u4e5f\u5c31\u610f\u5473\u7740\u6211\u4eec\u4e0d\u9700\u8981\u5173\u5fc3\u670d\u52a1\u5668\u53d1\u9001\u62a5\u6587\u7684\u65f6\u5019\u4f1a\u91c7\u7528\u4e3b\u673a\u4e0a\u7684\u54ea\u4e2aIP\u5730\u5740&#xff0c;\u7cfb\u7edf\u4f1a\u5e2e\u6211\u4eec\u81ea\u52a8\u9009\u62e9\u5176\u4e2d\u7684\u4e00\u4e2aIP\u5730\u5740\u4f5c\u4e3a\u6e90IP\u53d1\u9001\u62a5\u6587<\/li>\n<li>\u6240\u4ee5\u6b64\u65f6\u90a3\u4e48\u5bf9\u4e8ebind\u7ed1\u5b9a\u7684IP\u5730\u5740&#xff0c;\u8fd9\u91cc\u6211\u4eec\u7ed1\u5b9aQHostAddress\u63d0\u4f9b\u7684QHostAddress::And&#xff0c;\u5176\u5b9e\u8fd9\u4e2aQHostAddress::And\u672c\u8d28\u4e0a\u5c31\u662f0.0.0.0&#xff0c;\u7136\u540e\u5bf9\u4e8ebind\u7ed1\u5b9a\u7684\u7aef\u53e3\u53f7port\u6211\u4eec\u968f\u4fbf\u586b\u5199\u4e00\u4e2a9090\u5373\u53ef&#xff0c;\u6ce8\u610f\u8fd9\u91cc\u968f\u4fbf\u586b\u5199\u7684\u7aef\u53e3\u53f7port\u7684\u8303\u56f4\u8981\u5728[1024, 65535]\u4e4b\u95f4&#xff0c;\u56e0\u4e3a\u7aef\u53e3\u53f7\u662f16\u4f4d\u6bd4\u7279\u4f4d&#xff0c;\u4e5f\u5c31\u662f\u8bf4\u6700\u5927\u8868\u793a\u7684\u8303\u56f4\u662f65535&#xff0c;\u7aef\u53e3\u53f7\u53ef\u4ee5\u4ece0\u5f00\u59cb&#xff0c;\u800c\u7cfb\u7edf\u5360\u7528\u7684\u7aef\u53e3\u53f7port\u662f[0, 1023]&#xff0c;\u6240\u4ee5\u6211\u4eec\u586b\u5199\u7684\u7aef\u53e3\u53f7port\u7684\u8303\u56f4\u8981\u5728[1024, 65535]\u4e4b\u95f4<\/li>\n<li>\u90a3\u4e48\u89c2\u5bdf\u4ed4\u7ec6\u7684\u8bfb\u8005\u53cb\u53cb\u53ef\u80fd\u4f1a\u89c2\u5bdf&#xff0c;\u5c0f\u7f16\u662f\u5148connect\u8fde\u63a5\u4e86\u4fe1\u53f7\u69fd&#xff0c;\u518d\u8fdb\u884c\u4e86bind\u7ed1\u5b9a\u4e86IP\u5730\u5740\u548c\u7aef\u53e3\u53f7port&#xff0c;\u8fd9\u662f\u4e3a\u4ec0\u4e48\u5462&#xff0c;\u80fd\u4e0d\u80fd\u5148bind\u7ed1\u5b9aIP\u5730\u5740\u548c\u7aef\u53e3\u53f7port&#xff0c;\u7136\u540e\u518dconnect\u8fde\u63a5\u4fe1\u53f7\u69fd\u5462&#xff1f;<\/li>\n<li>\u4e0d\u80fd&#xff0c;\u5176\u5b9e\u4e00\u65e6bind\u7ed1\u5b9a\u4e86IP\u5730\u5740\u548c\u7aef\u53e3\u53f7&#xff0c;\u4e5f\u5c31\u610f\u5473\u7740\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u62a5\u6587\u53ef\u4ee5\u88ab\u670d\u52a1\u5668\u63a5\u6536\u5230\u4e86&#xff0c;\u800cconnect\u8fde\u63a5\u4fe1\u53f7\u69fd\u662f\u4e3a\u4e86\u5f53\u670d\u52a1\u5668\u6536\u5230\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u7684\u65f6\u5019\u53ef\u4ee5\u89e6\u53d1readyRead\u4fe1\u53f7&#xff0c;\u8fdb\u800c\u53bb\u6267\u884c\u5173\u8054\u7684\u69fd\u51fd\u6570\u5904\u7406\u9700\u6c42\u7684<\/li>\n<li>\u6240\u4ee5\u4e00\u65e6\u5148bind\u7ed1\u5b9aIP\u5730\u5740\u548c\u7aef\u53e3\u53f7port&#xff0c;\u7136\u540e\u518dconnect\u8fde\u63a5\u4fe1\u53f7\u69fd&#xff0c;\u90a3\u4e48\u5728\u5148bind\u7ed1\u5b9aIP\u5730\u5740\u548c\u7aef\u53e3\u53f7port\u4e4b\u540e&#xff0c;\u7136\u540e\u5728connect\u8fde\u63a5\u4fe1\u53f7\u69fd\u4e4b\u524d&#xff0c;\u8fd9\u4e2a\u7a97\u53e3\u671f&#xff0c;\u6709\u5ba2\u6237\u7aef\u628a\u8bf7\u6c42\u62a5\u6587\u53d1\u9001\u8fc7\u6765\u4e86&#xff0c;\u6b64\u65f6\u5c31\u6709\u53ef\u80fd\u7531\u4e8e\u4fe1\u53f7\u69fd\u6ca1\u6709\u5b8c\u6210\u8fde\u63a5&#xff0c;\u6240\u4ee5\u5bf9\u4e8e\u670d\u52a1\u5668\u5bf9\u4e8e\u6536\u5230\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u7684\u65f6\u5019\u53ef\u4ee5\u89e6\u53d1readyRead\u4fe1\u53f7\u4e0d\u4f1a\u8fdb\u884c\u5904\u7406&#xff0c;\u8fdb\u800c\u6b64\u65f6\u6765\u81ea\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u62a5\u6587\u5c31\u65e0\u6cd5\u8fdb\u884c\u8bfb\u53d6\u4e86&#xff0c;\u81ea\u7136\u4e5f\u5c31\u65e0\u6cd5\u8fdb\u884c\u4e1a\u52a1\u903b\u8f91\u7684\u5904\u7406&#xff0c;\u4e5f\u5c31\u65e0\u6cd5\u7ed9\u5ba2\u6237\u7aef\u54cd\u5e94\u4e86<\/li>\n<li>\u6240\u4ee5\u5148bind\u7ed1\u5b9aIP\u5730\u5740\u548c\u7aef\u53e3\u53f7port&#xff0c;\u7136\u540e\u518dconnect\u8fde\u63a5\u4fe1\u53f7\u69fd\u672c\u8eab\u5c31\u662f\u4e0d\u5408\u7406\u7684&#xff0c;\u5bf9\u4e8e\u5ba2\u6237\u7aef\u6765\u8bb2&#xff0c;\u4f60\u670d\u52a1\u5668bind\u7ed1\u5b9aIP\u5730\u5740\u548c\u7aef\u53e3\u53f7port&#xff0c;\u4e5f\u5c31\u610f\u5473\u7740\u4f60\u670d\u52a1\u5668\u8981\u7ed9\u6211\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\u4e86&#xff0c;\u53ef\u662f\u6211\u5ba2\u6237\u7aef\u628a\u8bf7\u6c42\u62a5\u6587\u53d1\u9001\u7ed9\u4f60\u4e86&#xff0c;\u4f60\u670d\u52a1\u5668\u5374\u65e0\u6cd5\u5904\u7406\u6211\u7684\u8bf7\u6c42&#xff0c;\u65e0\u6cd5\u7ed9\u6211\u54cd\u5e94&#xff0c;\u6240\u4ee5\u8fd9\u672c\u8eab\u5c31\u662f\u4e0d\u79d1\u5b66\u7684<\/li>\n<li>\u800c\u5148connect\u8fde\u63a5\u4fe1\u53f7\u69fd&#xff0c;\u7136\u540e\u518dbind\u7ed1\u5b9aIP\u5730\u5740\u548c\u7aef\u53e3\u53f7port\u662f\u5408\u7406\u7684&#xff0c;\u6b64\u65f6\u5148connect\u8fde\u63a5\u4fe1\u53f7\u69fd&#xff0c;\u4e5f\u5c31\u610f\u5473\u7740\u6b64\u65f6\u670d\u52a1\u5668\u5148\u51c6\u5907\u597d\u5f53\u670d\u52a1\u5668\u6536\u5230\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u7684\u65f6\u5019\u53ef\u4ee5\u89e6\u53d1readyRead\u4fe1\u53f7&#xff0c;\u8fdb\u800c\u53bb\u6267\u884c\u5173\u8054\u7684\u69fd\u51fd\u6570\u5904\u7406\u9700\u6c42\u7684&#xff0c;\u7136\u540e\u7ed9\u5ba2\u6237\u7aef\u53d1\u9001\u54cd\u5e94\u62a5\u6587&#xff0c;\u6b64\u65f6\u7531\u4e8e\u670d\u52a1\u5668\u6ca1\u6709bind\u7ed1\u5b9a&#xff0c;\u4e5f\u5c31\u610f\u5473\u7740\u6b64\u65f6\u670d\u52a1\u5668\u8fd8\u6ca1\u6709\u63d0\u4f9b\u670d\u52a1&#xff0c;\u6240\u4ee5\u81ea\u7136\u7684\u5ba2\u6237\u7aef\u754c\u9762\u4e0a\u53d1\u9001\u8bf7\u6c42\u62a5\u6587\u4e4b\u540e\u4f1a\u663e\u793a\u670d\u52a1\u5668\u8fd8\u6ca1\u6709\u63d0\u4f9b\u670d\u52a1<\/li>\n<li>\u63a5\u4e0b\u6765\u6211\u4eecbind\u7ed1\u5b9aIP\u5730\u5740\u548c\u7aef\u53e3\u53f7port\u4ee3\u8868\u7740\u670d\u52a1\u5668\u6b64\u65f6\u53ef\u4ee5\u63d0\u4f9b\u670d\u52a1\u4e86&#xff0c;\u90a3\u4e48\u5ba2\u6237\u7aef\u53d1\u9001\u8bf7\u6c42\u62a5\u6587&#xff0c;\u5c31\u53ef\u4ee5\u88ab\u670d\u52a1\u5668\u6536\u5230&#xff0c;\u6b64\u65f6\u670d\u52a1\u5668\u662fsocket\u89e6\u53d1readyRead\u4fe1\u53f7&#xff0c;\u8fdb\u800c\u53bb\u6267\u884c\u5173\u8054\u7684\u69fd\u51fd\u6570\u5c06\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u62a5\u6587\u8bfb\u53d6\u4e0a\u6765&#xff0c;\u8fdb\u884c\u4e1a\u52a1\u903b\u8f91\u7684\u5904\u7406&#xff0c;\u6784\u5efa\u54cd\u5e94\u62a5\u6587\u5e76\u53d1\u9001\u7ed9\u5ba2\u6237\u7aef&#xff0c;\u6ca1\u6709\u95ee\u9898<\/li>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&#034;widget.h&#034;<\/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\">&#034;ui_widget.h&#034;<\/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;QMessageBox&gt;<\/span><\/span><\/p>\n<p><span class=\"token class-name\">Widget<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">Widget<\/span><span class=\"token punctuation\">(<\/span>QWidget <span class=\"token operator\">*<\/span>parent<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token operator\">:<\/span> <span class=\"token function\">QWidget<\/span><span class=\"token punctuation\">(<\/span>parent<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">,<\/span> <span class=\"token function\">ui<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">new<\/span> Ui<span class=\"token double-colon punctuation\">::<\/span>Widget<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    ui<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">setupUi<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    socket <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token function\">QUdpSocket<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">this<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token function\">setWindowTitle<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u670d\u52a1\u5668&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token function\">connect<\/span><span class=\"token punctuation\">(<\/span>socket<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>QUdpSocket<span class=\"token double-colon punctuation\">::<\/span>readyRead<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>Widget<span class=\"token double-colon punctuation\">::<\/span>processRequest<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">bool<\/span> ret <span class=\"token operator\">&#061;<\/span> socket<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">bind<\/span><span class=\"token punctuation\">(<\/span>QHostAddress<span class=\"token double-colon punctuation\">::<\/span>Any<span class=\"token punctuation\">,<\/span> <span class=\"token number\">9090<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>ret <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">QMessageBox<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">critical<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\u670d\u52a1\u5668\u542f\u52a8\u51fa\u9519&#034;<\/span><span class=\"token punctuation\">,<\/span> socket<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">errorString<\/span><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 keyword\">return<\/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 class-name\">Widget<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token operator\">~<\/span><span class=\"token function\">Widget<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">delete<\/span> ui<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token class-name\">Widget<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">processRequest<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><\/p>\n<li>\u800c\u5bf9\u4e8ebind\u7ed9\u670d\u52a1\u5668\u7ed1\u5b9aIP\u5730\u5740\u548c\u7aef\u53e3\u53f7port\u6765\u8bb2&#xff0c;\u6211\u4eec\u77e5\u9053\u4e00\u4e2a\u7aef\u53e3\u53f7port\u53ea\u80fd\u88ab\u4e00\u4e2asocket\u7ed1\u5b9a&#xff0c;\u6240\u4ee5\u6b64\u65f6\u4e07\u4e00\u6211\u4eec\u968f\u673a\u586b\u5199\u76849090\u88ab\u4e3b\u673a\u4e0a\u7684\u5176\u5b83\u670d\u52a1\u7ed1\u5b9a\u4e86\u5462&#xff1f;\u6240\u4ee5\u6b64\u65f6\u670d\u52a1\u5668\u7ed1\u5b9a\u7aef\u53e3\u53f7port\u5c31\u4f1a\u5931\u8d25&#xff0c;\u6b64\u65f6\u4e5f\u5c31\u610f\u5473\u7740\u670d\u52a1\u5668\u542f\u52a8\u51fa\u9519\u4e86&#xff0c;\u670d\u52a1\u5668\u4e5f\u5c31\u65e0\u6cd5\u7ed9\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\u4e86&#xff0c;\u6240\u4ee5\u6211\u4eec\u53ef\u4ee5\u770b\u51fa\u5bf9\u4e8e\u670d\u52a1\u5668\u7ed1\u5b9a\u7aef\u53e3\u53f7port\u5931\u8d25\u662f\u4e00\u4e2a\u5f88\u4e25\u91cd\u7684\u95ee\u9898<\/li>\n<li>\u6240\u4ee5\u6211\u4eec\u671f\u671b\u5bf9bind\u7ed1\u5b9a\u662f\u5426\u5931\u8d25\u7684\u7ed3\u679c\u8fdb\u884c\u5224\u5b9a&#xff0c;\u800c\u6070\u597dbind\u7684\u8fd4\u56de\u503c\u5c31\u662fbool\u7c7b\u578b\u7684\u53d8\u91cf&#xff0c;\u6240\u4ee5\u6b64\u65f6\u6211\u4eec\u4f7f\u7528bool\u7c7b\u578b\u7684\u53d8\u91cfret\u63a5\u6536bind\u7684\u8fd4\u56de\u503c&#xff0c;\u5982\u679cbind\u7684\u8fd4\u56de\u503c\u4e3afalse&#xff0c;\u4ee3\u8868bind\u7ed1\u5b9a\u5931\u8d25&#xff0c;\u90a3\u4e48\u5c31\u4ee3\u8868\u6b64\u65f6\u7aef\u53e3\u53f7port\u88ab\u5360\u7528\u6216\u8005\u5176\u5b83\u7684\u56e0\u7d20&#xff0c;\u90a3\u4e48\u6b64\u65f6\u6211\u4eec\u5c31\u4f7f\u7528QMessageBox::critical\u5f39\u51fa\u4e00\u4e2a\u4e25\u91cd\u95ee\u9898\u7684\u6d88\u606f\u5bf9\u8bdd\u6846<\/li>\n<li>\u63a5\u4e0b\u6765\u4f20\u53c2\u7236\u5143\u7d20\u4e3aWidget\u7a97\u53e3\u5bf9\u5e94\u7684this\u6307\u9488&#xff0c;\u6302\u63a5\u5230\u5bf9\u8c61\u6811\u4e0a&#xff0c;\u7136\u540e\u7ee7\u7eed\u4f20\u53c2\u4e25\u91cd\u95ee\u9898\u7684\u6d88\u606f\u5bf9\u8bdd\u6846\u7684\u6807\u9898\u4e3a\u670d\u52a1\u5668\u542f\u52a8\u51fa\u9519&#xff0c;\u63a5\u4e0b\u6765\u4f20\u53c2\u4e25\u91cd\u95ee\u9898\u7684\u6d88\u606f\u5bf9\u8bdd\u6846\u4e2d\u663e\u793a\u7684\u6587\u672c&#xff0c;\u6b64\u65f6\u6211\u4eec\u77e5\u9053bind\u7ed1\u5b9a\u5931\u8d25\u7684\u539f\u56e0\u5417&#xff1f;\u597d\u50cf\u4e0d\u592a\u6e05\u695a&#xff0c;\u5bf9\u4e8e\u6b64\u65f6bind\u7ed1\u5b9a\u5931\u8d25\u7684\u539f\u56e0\u6709\u53ef\u80fd\u662f\u7aef\u53e3\u53f7port\u88ab\u5360\u7528\u6216\u8005IP\u5730\u5740\u9519\u8bef\u6216\u8005\u6743\u9650\u4e0d\u8db3\u6216\u8005\u7aef\u53e3\u53f7\u975e\u6cd5\u7b49\u539f\u56e0<\/li>\n<li>\u6240\u4ee5\u5bf9\u4e8ebind\u7ed1\u5b9a\u5931\u8d25\u7684\u539f\u56e0&#xff0c;\u6211\u4eec\u786e\u5b9e\u4e0d\u592a\u6e05\u695a&#xff0c;\u90a3\u4e48\u8c01\u6e05\u695a\u5462&#xff1f;\u7cfb\u7edf\u6e05\u695a&#xff0c;\u7cfb\u7edf\u8c03\u7528bind\u5931\u8d25\u65f6\u5019&#xff0c;\u4f1a\u8bbe\u7f6e\u9519\u8bef\u7801errno&#xff0c;\u800c\u5728C\u8bed\u8a00\u4e2d\u4f7f\u7528perror\u5c31\u53ef\u4ee5\u5c06errno\u5bf9\u5e94\u7684\u9519\u8bef\u4fe1\u606f\u4ee5\u5b57\u7b26\u4e32\u7684\u5f62\u5f0f\u8fdb\u884c\u6253\u5370&#xff0c;\u6070\u597dQt\u4e2d\u5bf9\u4e8eerrno\u673a\u5236\u540c\u6837\u5c01\u88c5\u6210\u4e86errorString&#xff0c;\u8fd9\u91cc\u7684Qt\u4e2d\u7684errnoString\u7684\u4f5c\u7528\u5c31\u548cC\u8bed\u8a00\u4e2d\u7684perror\u7c7b\u4f3c&#xff0c;\u6240\u4ee5\u6211\u4eec\u8fd9\u91cc\u5c31\u8c03\u7528errnoString\u5c06errno\u5bf9\u5e94\u7684\u9519\u8bef\u4fe1\u606f\u8f6c\u6362\u6210\u5b57\u7b26\u4e32\u7684\u5f62\u5f0f\u8fdb\u884c\u4f20\u53c2<\/li>\n<li>\u90a3\u4e48\u5728\u5f39\u51fa\u4e25\u91cd\u95ee\u9898\u7684\u6d88\u606f\u5bf9\u8bdd\u6846\u4e4b\u540e&#xff0c;\u7531\u4e8e\u6b64\u65f6\u670d\u52a1\u5668\u7ed1\u5b9a\u7aef\u53e3\u5931\u8d25&#xff0c;\u4e5f\u5c31\u610f\u5473\u7740\u6b64\u65f6\u670d\u52a1\u5668\u542f\u52a8\u5931\u8d25\u4e86&#xff0c;\u5373\u6b64\u65f6\u670d\u52a1\u5668\u65e0\u6cd5\u4e3a\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\u4e86&#xff0c;\u6240\u4ee5\u540e\u9762\u7684\u903b\u8f91\u6211\u4eec\u4e5f\u4e0d\u7528\u6267\u884c\u4e86&#xff0c;\u76f4\u63a5return\u5373\u53ef&#xff0c;\u5982\u679cbind\u7684\u8fd4\u56de\u503c\u4e3atrue\u8d70\u5230\u4e0b\u9762&#xff0c;\u4ee3\u8868\u6b64\u65f6\u670d\u52a1\u5668bind\u7ed1\u5b9aIP\u5730\u5740\u548c\u7aef\u53e3\u53f7port\u6210\u529f&#xff0c;\u6240\u4ee5\u6211\u4eec\u5c31\u7ee7\u7eed\u6267\u884c\u540e\u9762\u7684\u903b\u8f91\u5373\u53ef<\/li>\n<li>\u5f53\u7136\u5728\u6211\u4eec\u7684\u4ee3\u7801\u4e2d&#xff0c;Widget\u7684\u6784\u9020\u51fd\u6570\u4e2d\u597d\u50cf\u6ca1\u6709\u540e\u7eed\u7684\u903b\u8f91\u4e86&#xff0c;\u5b9e\u5219\u4e0d\u7136&#xff0c;\u540e\u7eed\u5c31\u8981\u5230main.cpp\u4e2d\u7684main\u51fd\u6570\u4e2d\u4e86&#xff0c;show\u663e\u793a\u670d\u52a1\u5668\u7684\u754c\u9762&#xff0c;\u7136\u540eexec\u6267\u884c\u540e\u7eed\u7684\u903b\u8f91&#xff0c;\u670d\u52a1\u5668\u57fa\u4e8e\u4fe1\u53f7\u69fd&#xff0c;\u8fdb\u884c\u4e8b\u4ef6\u9a71\u52a8\u5f0f\u7684&#xff0c;\u6536\u5230\u6765\u81ea\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u62a5\u6587&#xff0c;\u89e6\u53d1readyRead\u4fe1\u53f7&#xff0c;\u6267\u884c\u5bf9\u5e94\u7684\u69fd\u51fd\u6570\u8fdb\u800c\u5904\u7406\u6765\u81ea\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42&#xff0c;\u7136\u540e\u8fdb\u884c\u4e1a\u52a1\u903b\u8f91&#xff0c;\u6784\u5efa\u54cd\u5e94\u62a5\u6587\u5e76\u4e14\u53d1\u9001\u7ed9\u5ba2\u6237\u7aef<\/li>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&#034;widget.h&#034;<\/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\">&#034;ui_widget.h&#034;<\/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;QMessageBox&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;QNetworkDatagram&gt;<\/span><\/span><\/p>\n<p><span class=\"token class-name\">Widget<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">Widget<\/span><span class=\"token punctuation\">(<\/span>QWidget <span class=\"token operator\">*<\/span>parent<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token operator\">:<\/span> <span class=\"token function\">QWidget<\/span><span class=\"token punctuation\">(<\/span>parent<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">,<\/span> <span class=\"token function\">ui<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">new<\/span> Ui<span class=\"token double-colon punctuation\">::<\/span>Widget<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    ui<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">setupUi<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    socket <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token function\">QUdpSocket<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">this<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token function\">setWindowTitle<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u670d\u52a1\u5668&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token function\">connect<\/span><span class=\"token punctuation\">(<\/span>socket<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>QUdpSocket<span class=\"token double-colon punctuation\">::<\/span>readyRead<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>Widget<span class=\"token double-colon punctuation\">::<\/span>processRequest<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">bool<\/span> ret <span class=\"token operator\">&#061;<\/span> socket<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">bind<\/span><span class=\"token punctuation\">(<\/span>QHostAddress<span class=\"token double-colon punctuation\">::<\/span>Any<span class=\"token punctuation\">,<\/span> <span class=\"token number\">9090<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>ret <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">QMessageBox<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">critical<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\u670d\u52a1\u5668\u542f\u52a8\u51fa\u9519&#034;<\/span><span class=\"token punctuation\">,<\/span> socket<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">errorString<\/span><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 keyword\">return<\/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 class-name\">Widget<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token operator\">~<\/span><span class=\"token function\">Widget<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">delete<\/span> ui<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token class-name\">Widget<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">processRequest<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u8bfb\u53d6\u6765\u81ea\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u62a5\u6587&#xff0c;\u5e76\u4e14\u89e3\u6790\u8bf7\u6c42\u62a5\u6587<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> QNetworkDatagram<span class=\"token operator\">&amp;<\/span> requestDatagram <span class=\"token operator\">&#061;<\/span> socket<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">receiveDatagram<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    QString request <span class=\"token operator\">&#061;<\/span> requestDatagram<span class=\"token punctuation\">.<\/span><span class=\"token function\">data<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u8fdb\u884c\u4e1a\u52a1\u903b\u8f91\u5904\u7406&#xff0c;\u5e76\u4e14\u6784\u5efa\u54cd\u5e94\u62a5\u6587<\/span><br \/>\n    QString response <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">this<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token function\">process<\/span><span class=\"token punctuation\">(<\/span>request<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    QNetworkDatagram <span class=\"token function\">responseDatagram<\/span><span class=\"token punctuation\">(<\/span>response<span class=\"token punctuation\">.<\/span><span class=\"token function\">toUtf8<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> requestDatagram<span class=\"token punctuation\">.<\/span><span class=\"token function\">senderAddress<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> requestDatagram<span class=\"token punctuation\">.<\/span><span class=\"token function\">senderPort<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u5c06\u54cd\u5e94\u62a5\u6587\u53d1\u9001\u7ed9\u5ba2\u6237\u7aef<\/span><br \/>\n    socket<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">writeDatagram<\/span><span class=\"token punctuation\">(<\/span>responseDatagram<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u628a\u4ea4\u4e92\u7684\u4fe1\u606f\u56de\u663e\u5230\u754c\u9762\u4e0a<\/span><br \/>\n    QString log <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;[&#034;<\/span> <span class=\"token operator\">&#043;<\/span> requestDatagram<span class=\"token punctuation\">.<\/span><span class=\"token function\">senderAddress<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">toString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#043;<\/span> <span class=\"token string\">&#034;:&#034;<\/span> <span class=\"token operator\">&#043;<\/span> <span class=\"token class-name\">QString<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">number<\/span><span class=\"token punctuation\">(<\/span>requestDatagram<span class=\"token punctuation\">.<\/span><span class=\"token function\">senderPort<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token operator\">&#043;<\/span> <span class=\"token string\">&#034;] req: &#034;<\/span> <span class=\"token operator\">&#043;<\/span> request <span class=\"token operator\">&#043;<\/span> <span class=\"token string\">&#034;, resp: &#034;<\/span> <span class=\"token operator\">&#043;<\/span> response<span class=\"token punctuation\">;<\/span><br \/>\n    ui<span class=\"token operator\">-&gt;<\/span>listWidget<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">addItem<\/span><span class=\"token punctuation\">(<\/span>log<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>QString <span class=\"token class-name\">Widget<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">process<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> QString<span class=\"token operator\">&amp;<\/span> request<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> request<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<li>\u63a5\u4e0b\u6765\u6211\u4eec\u5c31\u8be5\u8fdb\u884csocket\u7684readyRead\u4fe1\u53f7\u5bf9\u5e94\u7684\u69fd\u51fd\u6570processRequest\u7684\u7f16\u5199\u4e86\u4e86&#xff0c;\u800c\u8fd9\u4e2a\u69fd\u51fd\u6570\u662f\u8981\u5904\u7406\u6765\u81ea\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u7684&#xff0c;\u5bf9\u4e8e\u670d\u52a1\u5668\u5904\u7406\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42&#xff0c;\u4e00\u822c\u90fd\u662f\u6309\u7167\u5982\u4e0b\u4e09\u4e2a\u6b65\u9aa4\u6765\u8fdb\u884c\u5904\u7406&#xff0c;\u4e0b\u9762\u5c0f\u7f16\u9010\u4e00\u8fdb\u884c\u8bb2\u89e3 &#xff08;1&#xff09;\u8bfb\u53d6\u6765\u81ea\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u62a5\u6587&#xff0c;\u5e76\u4e14\u89e3\u6790\u8bf7\u6c42\u62a5\u6587 &#xff08;2&#xff09;\u8fdb\u884c\u4e1a\u52a1\u903b\u8f91\u5904\u7406&#xff0c;\u5e76\u4e14\u6784\u5efa\u54cd\u5e94\u62a5\u6587 &#xff08;3&#xff09;\u5c06\u54cd\u5e94\u62a5\u6587\u53d1\u9001\u7ed9\u5ba2\u6237\u7aef<\/li>\n<li>\u5bf9\u4e8e\u7b2c\u4e00\u6b65\u5c31\u662f\u8bfb\u53d6\u6765\u81ea\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u62a5\u6587&#xff0c;\u5e76\u4e14\u89e3\u6790\u8bf7\u6c42\u62a5\u6587&#xff0c;\u6240\u4ee5\u6b64\u65f6\u6211\u4eec\u5148\u4f7f\u7528receiveDatagram\u8bfb\u53d6\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u62a5\u6587&#xff0c;\u800creceiveDatagram\u7684\u8fd4\u56de\u503c\u5c31\u662f\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u62a5\u6587&#xff0c;\u6240\u4ee5\u6211\u4eec\u4f7f\u7528QNetworkDatagram\u7c7b\u578b\u7684\u53d8\u91cfrequestDatagram\u63a5\u6536receiveDatagram\u7684\u8fd4\u56de\u503c&#xff0c;\u5373\u63a5\u6536\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u62a5\u6587&#xff0c;\u63a5\u4e0b\u6765\u6211\u4eec\u5c31\u8981\u89e3\u6790\u8bf7\u6c42\u62a5\u6587\u4e86&#xff0c;\u5982\u4f55\u89e3\u6790\u5462&#xff1f; <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260730053255-6a6ae207ec34e.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" width=\"200\" \/><\/li>\n<li>\u5176\u5b9e\u5c31\u662f\u83b7\u53d6\u8bf7\u6c42\u62a5\u6587\u4e2d\u7684\u6709\u6548\u8f7d\u8377\u7684\u5185\u5bb9&#xff0c;\u90a3\u4e48\u6211\u4eec\u53ef\u4ee5\u8c03\u7528data\u8fdb\u884c\u83b7\u53d6&#xff0c;\u5982\u4e0a\u6211\u4eec\u53ef\u4ee5\u770b\u51fadata\u7684\u8fd4\u56de\u503c\u662f\u4e00\u4e2aQByteArray\u7c7b\u578b\u7684\u53d8\u91cf&#xff0c;\u8fd9\u91cc\u5176\u5b9e\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528QString\u7c7b\u578b\u7684\u53d8\u91cfrequest\u8fdb\u884c\u63a5\u6536&#xff0c;\u56e0\u4e3a\u5728\u524d\u6587\u4e2d&#xff0c;\u5c0f\u7f16\u8bb2\u89e3\u8fc7QString\u7c7b\u578b\u7684\u6784\u9020\u51fd\u6570\u53ef\u4ee5\u652f\u6301\u4f7f\u7528QByteArray\u7c7b\u578b\u7684\u5bf9\u8c61\u8fdb\u884c\u6784\u9020&#xff0c;\u6240\u4ee5\u8fd9\u91cc\u6b64\u65f6\u6211\u4eec\u4f7f\u7528QString\u7c7b\u578b\u7684\u53d8\u91cf\u63a5\u6536data\u4e3aQByteArray\u7c7b\u578b\u7684\u53d8\u91cf\u5373\u53ef&#xff0c;\u6240\u4ee5\u6b64\u65f6\u6211\u4eec\u5c31\u62ff\u5230\u4e86\u7528\u6237\u53d1\u6765\u7684\u8bf7\u6c42\u62a5\u6587\u4e2d\u7684\u6709\u6548\u8f7d\u8377&#xff0c;\u8fd9\u4e2a\u6709\u6548\u8f7d\u8377\u4e5f\u5c31\u662f\u8981\u4ea4\u7ed9\u5e94\u7528\u5c42\u6765\u8fdb\u884c\u5904\u7406\u7684&#xff0c;\u4e5f\u5c31\u662f\u8981\u8fdb\u884c\u5982\u4e0b\u7684\u7b2c\u4e8c\u6b65<\/li>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">ifndef<\/span> <span class=\"token expression\">WIDGET_H<\/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\">WIDGET_H<\/span><\/span><\/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;QWidget&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;QUdpSocket&gt;<\/span><\/span><\/p>\n<p>QT_BEGIN_NAMESPACE<br \/>\n<span class=\"token keyword\">namespace<\/span> Ui <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Widget<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\nQT_END_NAMESPACE<\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Widget<\/span> <span class=\"token operator\">:<\/span> <span class=\"token base-clause\"><span class=\"token keyword\">public<\/span> <span class=\"token class-name\">QWidget<\/span><\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    Q_OBJECT<\/p>\n<p><span class=\"token keyword\">public<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token function\">Widget<\/span><span class=\"token punctuation\">(<\/span>QWidget <span class=\"token operator\">*<\/span>parent <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">nullptr<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token operator\">~<\/span><span class=\"token function\">Widget<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">private<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">processRequest<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    QString <span class=\"token function\">process<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> QString<span class=\"token operator\">&amp;<\/span> request<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">private<\/span><span class=\"token operator\">:<\/span><br \/>\n    Ui<span class=\"token double-colon punctuation\">::<\/span>Widget <span class=\"token operator\">*<\/span>ui<span class=\"token punctuation\">;<\/span><\/p>\n<p>    QUdpSocket<span class=\"token operator\">*<\/span> socket<span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">endif<\/span> <span class=\"token comment\">\/\/ WIDGET_H<\/span><\/span><\/p>\n<li>\u5bf9\u4e8e\u7b2c\u4e8c\u6b65&#xff0c;\u4e5f\u5c31\u662f\u8981\u8fdb\u884c\u4e1a\u52a1\u903b\u8f91\u5904\u7406&#xff0c;\u5e76\u4e14\u6784\u5efa\u54cd\u5e94\u62a5\u6587&#xff0c;\u5bf9\u4e8e\u7b2c\u4e8c\u6b65\u4e5f\u5c31\u662f\u6574\u4e2a\u670d\u52a1\u5668\u7684\u6838\u5fc3\u7684\u4e1a\u52a1\u903b\u8f91&#xff0c;\u4e00\u822c\u6211\u4eec\u90fd\u5c01\u88c5\u6210\u4e00\u4e2a\u51fd\u6570&#xff0c;\u6240\u4ee5\u8fd9\u91cc\u5728Widget\u7684.h\u5934\u6587\u4ef6\u4e2d&#xff0c;\u6211\u4eec\u58f0\u660e\u4e00\u4e2a\u79c1\u6709\u6210\u5458\u51fd\u6570process&#xff0c;\u53c2\u6570\u4e3aconst QString&amp;\u7684request&#xff0c;\u8fd4\u56de\u503c\u4e3aQString\u7c7b\u578b&#xff0c;\u5bf9\u4e8e\u8fd9\u91cc\u7684\u8fd4\u56de\u503c\u5c31\u662f\u8981\u8fd4\u56de\u54cd\u5e94<\/li>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&#034;widget.h&#034;<\/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\">&#034;ui_widget.h&#034;<\/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;QMessageBox&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;QNetworkDatagram&gt;<\/span><\/span><\/p>\n<p><span class=\"token class-name\">Widget<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">Widget<\/span><span class=\"token punctuation\">(<\/span>QWidget <span class=\"token operator\">*<\/span>parent<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token operator\">:<\/span> <span class=\"token function\">QWidget<\/span><span class=\"token punctuation\">(<\/span>parent<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">,<\/span> <span class=\"token function\">ui<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">new<\/span> Ui<span class=\"token double-colon punctuation\">::<\/span>Widget<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    ui<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">setupUi<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    socket <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token function\">QUdpSocket<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">this<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token function\">setWindowTitle<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u670d\u52a1\u5668&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token function\">connect<\/span><span class=\"token punctuation\">(<\/span>socket<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>QUdpSocket<span class=\"token double-colon punctuation\">::<\/span>readyRead<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>Widget<span class=\"token double-colon punctuation\">::<\/span>processRequest<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">bool<\/span> ret <span class=\"token operator\">&#061;<\/span> socket<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">bind<\/span><span class=\"token punctuation\">(<\/span>QHostAddress<span class=\"token double-colon punctuation\">::<\/span>Any<span class=\"token punctuation\">,<\/span> <span class=\"token number\">9090<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>ret <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">QMessageBox<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">critical<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\u670d\u52a1\u5668\u542f\u52a8\u51fa\u9519&#034;<\/span><span class=\"token punctuation\">,<\/span> socket<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">errorString<\/span><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 keyword\">return<\/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 class-name\">Widget<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token operator\">~<\/span><span class=\"token function\">Widget<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">delete<\/span> ui<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token class-name\">Widget<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">processRequest<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u8bfb\u53d6\u6765\u81ea\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u62a5\u6587&#xff0c;\u5e76\u4e14\u89e3\u6790\u8bf7\u6c42\u62a5\u6587<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> QNetworkDatagram<span class=\"token operator\">&amp;<\/span> requestDatagram <span class=\"token operator\">&#061;<\/span> socket<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">receiveDatagram<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    QString request <span class=\"token operator\">&#061;<\/span> requestDatagram<span class=\"token punctuation\">.<\/span><span class=\"token function\">data<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u8fdb\u884c\u4e1a\u52a1\u903b\u8f91\u5904\u7406&#xff0c;\u5e76\u4e14\u6784\u5efa\u54cd\u5e94\u62a5\u6587<\/span><br \/>\n    QString response <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">this<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token function\">process<\/span><span class=\"token punctuation\">(<\/span>request<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    QNetworkDatagram <span class=\"token function\">responseDatagram<\/span><span class=\"token punctuation\">(<\/span>response<span class=\"token punctuation\">.<\/span><span class=\"token function\">toUtf8<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> requestDatagram<span class=\"token punctuation\">.<\/span><span class=\"token function\">senderAddress<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> requestDatagram<span class=\"token punctuation\">.<\/span><span class=\"token function\">senderPort<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u5c06\u54cd\u5e94\u62a5\u6587\u53d1\u9001\u7ed9\u5ba2\u6237\u7aef<\/span><br \/>\n    socket<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">writeDatagram<\/span><span class=\"token punctuation\">(<\/span>responseDatagram<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u628a\u4ea4\u4e92\u7684\u4fe1\u606f\u56de\u663e\u5230\u754c\u9762\u4e0a<\/span><br \/>\n    QString log <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;[&#034;<\/span> <span class=\"token operator\">&#043;<\/span> requestDatagram<span class=\"token punctuation\">.<\/span><span class=\"token function\">senderAddress<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">toString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#043;<\/span> <span class=\"token string\">&#034;:&#034;<\/span> <span class=\"token operator\">&#043;<\/span> <span class=\"token class-name\">QString<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">number<\/span><span class=\"token punctuation\">(<\/span>requestDatagram<span class=\"token punctuation\">.<\/span><span class=\"token function\">senderPort<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token operator\">&#043;<\/span> <span class=\"token string\">&#034;] req: &#034;<\/span> <span class=\"token operator\">&#043;<\/span> request <span class=\"token operator\">&#043;<\/span> <span class=\"token string\">&#034;, resp: &#034;<\/span> <span class=\"token operator\">&#043;<\/span> response<span class=\"token punctuation\">;<\/span><br \/>\n    ui<span class=\"token operator\">-&gt;<\/span>listWidget<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">addItem<\/span><span class=\"token punctuation\">(<\/span>log<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>QString <span class=\"token class-name\">Widget<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">process<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> QString<span class=\"token operator\">&amp;<\/span> request<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> request<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<li>\u90a3\u4e48\u6b64\u65f6\u6211\u4eec\u5c31\u53ef\u4ee5\u5728Widget\u7684.cpp\u6e90\u6587\u4ef6\u4e2d&#xff0c;\u5b9a\u4e49\u8fd9\u4e2a\u4e1a\u52a1\u5904\u7406\u51fd\u6570process&#xff0c;\u5728process\u4e2d&#xff0c;\u7531\u4e8e\u5f53\u524d\u6211\u4eec\u5b9e\u73b0\u7684\u662fUDP\u56de\u663e\u670d\u52a1\u5668&#xff0c;\u6240\u4ee5\u8bf7\u6c42\u548c\u54cd\u5e94\u4e00\u6837&#xff0c;\u8fd9\u91cc\u6211\u4eec\u76f4\u63a5\u5c06\u8bf7\u6c42\u4f5c\u4e3a\u54cd\u5e94\u76f4\u63a5\u8fd4\u56de\u5373\u53ef&#xff0c;\u867d\u7136\u6211\u4eec\u8fd9\u91cc\u7684\u4e1a\u52a1\u5904\u7406\u51fd\u6570process\u7f16\u5199\u7684\u5341\u5206\u7b80\u5355&#xff0c;\u4f46\u662f\u6211\u4eec\u8981\u8ba4\u8bc6\u5230&#xff0c;\u5bf9\u4e8e\u4e00\u4e2a\u6210\u719f\u7684\u5546\u4e1a\u670d\u52a1\u5668\u6765\u8bb2&#xff0c;\u8fd9\u91cc\u7684\u8bf7\u6c42\u5230\u54cd\u5e94\u7684\u4e1a\u52a1\u903b\u8f91&#xff0c;\u53ef\u80fd\u662f\u975e\u5e38\u590d\u6742\u7684 <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260730053256-6a6ae2080608f.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" width=\"700\" \/><\/li>\n<li>\u6240\u4ee5\u6b64\u65f6\u4f7f\u7528QString\u7c7b\u578b\u7684response\u63a5\u6536\u4e1a\u52a1\u5904\u7406\u51fd\u6570process\u8fd4\u56de\u7684\u54cd\u5e94\u5373\u53ef&#xff0c;\u63a5\u4e0b\u6765\u6211\u4eec\u5c31\u53ef\u4ee5\u5f00\u59cb\u6784\u5efa\u54cd\u5e94\u62a5\u6587\u4e86&#xff0c;\u6b64\u65f6\u4f7f\u7528QNetworkDatagram\u6570\u636e\u62a5\u7c7b\u578b\u521b\u5efaresponseDatagram\u4f5c\u4e3a\u54cd\u5e94\u62a5\u6587&#xff0c;\u90a3\u4e48\u6211\u4eec\u5bf9\u4e8e\u7b2c\u4e00\u4e2a\u53c2\u6570\u9700\u8981\u4f20\u5165\u6709\u6548\u8f7d\u8377\u7684\u5185\u5bb9&#xff0c;\u8fd9\u91cc\u6211\u4eec\u6765\u770b&#xff0c;\u5982\u4e0a\u7b2c\u4e00\u4e2a\u53c2\u6570\u662fQByteArray\u7c7b\u578b&#xff0c;\u53ef\u662f\u6211\u4eec\u5b9e\u9645\u7ed9\u5ba2\u6237\u7aef\u53d1\u9001\u7684\u54cd\u5e94\u5185\u5bb9\u662fQString\u7c7b\u578b\u7684&#xff0c;\u6b64\u65f6\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528toUtf8\u5c06QString\u7c7b\u578b\u53d6\u51fa\u5185\u90e8\u7684\u5b57\u8282\u6570\u7ec4\u8f6c\u6362\u4e3aQByteArray\u7c7b\u578b\u8fdb\u884c\u4f20\u53c2<\/li>\n<li>\u63a5\u4e0b\u6765\u5bf9\u4e8e\u7b2c\u4e8c\u4e2a\u53c2\u6570\u6211\u4eec\u9700\u8981\u4f20\u5165\u5ba2\u6237\u7aef\u7684IP\u5730\u5740&#xff0c;\u6211\u4eec\u624b\u5934\u6709\u5417&#xff1f;\u6709\u7684&#xff0c;\u5c31\u5728\u5f53\u521d\u63a5\u6536\u7684\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u62a5\u6587\u4e2d\u5305\u542b&#xff0c;\u4f7f\u7528senderAddress\u5373\u53ef\u53d6\u51fa\u8bf7\u6c42\u62a5\u6587\u4e2d\u5ba2\u6237\u7aef\u7684IP\u5730\u5740\u4f20\u53c2\u7ed9\u7b2c\u4e8c\u4e2a\u53c2\u6570&#xff0c;\u540c\u7406\u4f7f\u7528senderPort\u5373\u53ef\u53d6\u51fa\u8bf7\u6c42\u62a5\u6587\u4e2d\u5ba2\u6237\u7aef\u7684\u7aef\u53e3\u53f7port\u4f20\u53c2\u7ed9\u7b2c\u4e09\u4e2a\u53c2\u6570<\/li>\n<li>\u90a3\u4e48\u5bf9\u4e8e\u7b2c\u4e09\u6b65&#xff0c;\u5c06\u54cd\u5e94\u62a5\u6587\u53d1\u9001\u7ed9\u5ba2\u6237\u7aef&#xff0c;\u6b64\u65f6\u6211\u4eec\u8c03\u7528writeDatagram\u5c06\u6211\u4eec\u6784\u5efa\u597d\u7684\u54cd\u5e94\u62a5\u6587\u4f20\u53c2\u53d1\u9001\u7ed9\u5ba2\u6237\u7aef\u5373\u53ef<\/li>\n<li>\u5230\u4e86\u7b2c\u4e09\u6b65\u5176\u5b9e\u5bf9\u4e8e\u4e00\u822c\u7684\u670d\u52a1\u5668\u6d41\u7a0b\u5c31\u5df2\u7ecf\u7ed3\u675f\u4e86&#xff0c;\u4f46\u662f\u6211\u4eec\u7684\u6d41\u7a0b\u8fd8\u6ca1\u6709\u7ed3\u675f&#xff0c;\u56e0\u4e3a\u6211\u4eec\u5b9e\u73b0\u7684\u670d\u52a1\u5668\u662fUDP\u56de\u663e\u670d\u52a1\u5668&#xff0c;\u8fd8\u8981\u628a\u4ea4\u4e92\u7684\u4fe1\u606f\u56de\u663e\u5230\u754c\u9762\u4e0a&#xff0c;\u6240\u4ee5\u6b64\u65f6\u6211\u4eec\u5c31\u6784\u5efaQString\u7c7b\u578b\u7684log&#xff0c;\u8fdb\u884c\u5b57\u7b26\u4e32\u62fc\u63a5&#xff0c;\u5c06\u5ba2\u6237\u7aef\u7684IP\u5730\u5740&#xff09;&#xff0c;\u7aef\u53e3\u53f7&#xff0c;\u8bf7\u6c42\u5bf9\u5e94\u7684\u5b57\u7b26\u4e32\u5185\u5bb9&#xff0c;\u54cd\u5e94\u5bf9\u5e94\u7684\u5b57\u7b26\u4e32\u5185\u5bb9\u90fd\u8fdb\u884c\u62fc\u63a5\u6784\u5efalog\u5373\u53ef <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260730053256-6a6ae2081c409.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" width=\"300\" \/><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260730053256-6a6ae2082b760.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" width=\"200\" \/><\/li>\n<li>\u8fd9\u91cc\u6211\u4eec\u9700\u8981\u5173\u6ce8\u6211\u4eec\u4f7f\u7528senderAddress\u53d6\u51fa\u7684IP\u5730\u5740\u662fQHostAddress\u7c7b\u578b\u7684&#xff0c;\u800c\u8fd9\u91cc\u8fdb\u884c\u5b57\u7b26\u4e32\u62fc\u63a5\u9700\u8981\u7684\u7c7b\u578b\u662fQString\u7c7b\u578b\u7684&#xff0c;\u6240\u4ee5\u6211\u4eec\u9700\u8981\u5c06QHostAddress\u7c7b\u578b\u8f6c\u6362\u4e3aQString\u7c7b\u578b\u7684&#xff0c;\u5982\u4f55\u8f6c\u5316\u5462&#xff1f;\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528QHostAddress\u7c7b\u63d0\u4f9b\u7684\u65b9\u6cd5toString\u5c06QHostAddress\u7c7b\u578b\u8f6c\u6362\u4e3aQString\u7c7b\u578b\u7684\u8fdb\u884c\u5b57\u7b26\u4e32\u7684\u62fc\u63a5 <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260730053256-6a6ae2083901e.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" width=\"200\" \/><\/li>\n<li>\u540c\u6837\u7684&#xff0c;\u4f7f\u7528senderPort\u53d6\u51fa\u7684\u7aef\u53e3\u53f7Port\u662fint\u7c7b\u578b\u7684&#xff0c;\u800c\u8fd9\u91cc\u8fdb\u884c\u5b57\u7b26\u4e32\u62fc\u63a5\u9700\u8981\u7684\u7c7b\u578b\u662fQString\u7c7b\u578b\u7684&#xff0c;\u6240\u4ee5\u6211\u4eec\u9700\u8981\u5c06int\u7c7b\u578b\u8f6c\u6362\u4e3aQString\u7c7b\u578b\u7684&#xff0c;\u5982\u4f55\u8f6c\u6362&#xff1f;\u5c0f\u7f16\u5728\u524d\u6587\u8bb2\u89e3\u8fc7QString\u4e2d\u63d0\u4f9b\u4e86\u9759\u6001\u51fd\u6570QString::number\u53ef\u4ee5\u5c06int\u7c7b\u578b\u8f6c\u6362\u4e3aQString\u7c7b\u578b\u8fdb\u884c\u5b57\u7b26\u4e32\u7684\u62fc\u63a5<\/li>\n<li>\u6b64\u65f6\u8981\u6dfb\u52a0\u5230QListWidget\u5217\u8868\u4e0a\u7684\u5143\u7d20log\u5df2\u7ecf\u51c6\u5907\u597d\u4e86&#xff0c;\u6240\u4ee5\u6211\u4eec\u8c03\u7528addItem\u5c06\u548c\u5ba2\u6237\u7aef\u4ea4\u4e92\u7684\u5143\u7d20log\u6dfb\u52a0\u5230\u754c\u9762\u4e0a\u7684\u5217\u8868\u4e2d\u8fdb\u884c\u56de\u663e\u5373\u53ef&#xff0c;\u6b64\u65f6\u6211\u4eec\u7684UDP\u56de\u663e\u670d\u52a1\u5668\u5c31\u5b9e\u73b0\u5b8c\u6210\u4e86&#xff0c;\u6b64\u65f6\u6211\u4eec\u8fd8\u6ca1\u6709\u529e\u6cd5\u8fdb\u884c\u6d4b\u8bd5&#xff0c;\u9700\u8981\u7b49\u4e0b\u4e00\u7bc7\u5c0f\u7f16\u5b9e\u73b0UDP\u5ba2\u6237\u7aef\u4e4b\u540e\u518d\u6765\u8fdb\u884c\u7edf\u4e00\u7684\u6d4b\u8bd5<\/li>\n<hr \/>\n<h3>\u603b\u7ed3<\/h3>\n<p>\u4ee5\u4e0a\u5c31\u662f\u4eca\u5929\u7684\u535a\u5ba2\u5185\u5bb9\u5566&#xff0c;\u5e0c\u671b\u5bf9\u8bfb\u8005\u670b\u53cb\u4eec\u6709\u5e2e\u52a9 \u6c34\u6ef4\u77f3\u7a7f&#xff0c;\u575a\u6301\u5c31\u662f\u80dc\u5229&#xff0c;\u8bfb\u8005\u670b\u53cb\u4eec\u53ef\u4ee5\u70b9\u4e2a\u5173\u6ce8 \u70b9\u8d5e\u6536\u85cf\u52a0\u5173\u6ce8&#xff0c;\u627e\u5230\u5c0f\u7f16\u4e0d\u8ff7\u8def&#xff01;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5c0f\u7f16\u4e2a\u4eba\u4e3b\u9875\u8be6\u60c5&lt;\u2014\u8bf7\u70b9\u51fb \u5c0f\u7f16\u4e2a\u4ebagitee\u4ee3\u7801\u4ed3\u5e93&lt;\u2014\u8bf7\u70b9\u51fb Qt\u7cfb\u5217\u4e13\u680f&lt;\u2014\u8bf7\u70b9\u51fb \u5018\u82e5\u547d\u4e2d\u65e0\u6b64\u8fd0&#xff0c;\u5b64\u8eab\u4ea6\u53ef\u767b\u6606\u4ed1&#xff0c;\u9001\u7ed9\u5c4f\u5e55\u9762\u524d\u7684\u8bfb\u8005\u670b\u53cb\u4eec\u548c\u5c0f\u7f16\u81ea\u5df1!  \u76ee\u5f55\u524d\u8a00\u4e00\u3001\u7f51\u7edc\u7f16\u7a0b\u8bb2\u89e3\u4e8c\u3001UDP\u5bf9\u5e94QUdpSocket\u548cQNetworkDatagram\u7684\u63a5\u53e3\u4ecb\u7ecd\u4e09\u3001UDP\u56de\u663e\u670d\u52a1\u5668\u7684\u5b9e\u73b0\u603b\u7ed3\u524d\u8a00 \u3010Qt\u3011\u7cfb\u7edf\u76f8\u5173&#xff08;\u516d&#xff09;QMutex\u9501&#xff0c;QMutexLocker\u7684\u4f7f\u7528&#xff0c;QWaitConditio<\/p>\n","protected":false},"author":2,"featured_media":87495,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[55,218,193,43,78],"topic":[],"class_list":["post-87506","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-c","tag-qt","tag-udp","tag-43","tag-78"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u3010Qt\u3011\u7cfb\u7edf\u76f8\u5173\uff08\u4e03\uff09\u7f51\u7edc\u7f16\u7a0b\u8bb2\u89e3\uff0cUDP\u56de\u663e\u670d\u52a1\u5668\u7684\u5b9e\u73b0\uff0cQUdpSocket\u548cQNetworkDatagram\u7684\u8bb2\u89e3 - \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\/87506.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u3010Qt\u3011\u7cfb\u7edf\u76f8\u5173\uff08\u4e03\uff09\u7f51\u7edc\u7f16\u7a0b\u8bb2\u89e3\uff0cUDP\u56de\u663e\u670d\u52a1\u5668\u7684\u5b9e\u73b0\uff0cQUdpSocket\u548cQNetworkDatagram\u7684\u8bb2\u89e3 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u5c0f\u7f16\u4e2a\u4eba\u4e3b\u9875\u8be6\u60c5&lt;\u2014\u8bf7\u70b9\u51fb \u5c0f\u7f16\u4e2a\u4ebagitee\u4ee3\u7801\u4ed3\u5e93&lt;\u2014\u8bf7\u70b9\u51fb Qt\u7cfb\u5217\u4e13\u680f&lt;\u2014\u8bf7\u70b9\u51fb \u5018\u82e5\u547d\u4e2d\u65e0\u6b64\u8fd0&#xff0c;\u5b64\u8eab\u4ea6\u53ef\u767b\u6606\u4ed1&#xff0c;\u9001\u7ed9\u5c4f\u5e55\u9762\u524d\u7684\u8bfb\u8005\u670b\u53cb\u4eec\u548c\u5c0f\u7f16\u81ea\u5df1! \u76ee\u5f55\u524d\u8a00\u4e00\u3001\u7f51\u7edc\u7f16\u7a0b\u8bb2\u89e3\u4e8c\u3001UDP\u5bf9\u5e94QUdpSocket\u548cQNetworkDatagram\u7684\u63a5\u53e3\u4ecb\u7ecd\u4e09\u3001UDP\u56de\u663e\u670d\u52a1\u5668\u7684\u5b9e\u73b0\u603b\u7ed3\u524d\u8a00 \u3010Qt\u3011\u7cfb\u7edf\u76f8\u5173&#xff08;\u516d&#xff09;QMutex\u9501&#xff0c;QMutexLocker\u7684\u4f7f\u7528&#xff0c;QWaitConditio\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/87506.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2026-07-30T05:32:57+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260730053254-6a6ae206e8438.gif\" \/>\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=\"10 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/87506.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/87506.html\",\"name\":\"\u3010Qt\u3011\u7cfb\u7edf\u76f8\u5173\uff08\u4e03\uff09\u7f51\u7edc\u7f16\u7a0b\u8bb2\u89e3\uff0cUDP\u56de\u663e\u670d\u52a1\u5668\u7684\u5b9e\u73b0\uff0cQUdpSocket\u548cQNetworkDatagram\u7684\u8bb2\u89e3 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"isPartOf\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\"},\"datePublished\":\"2026-07-30T05:32:57+00:00\",\"dateModified\":\"2026-07-30T05:32:57+00:00\",\"author\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/87506.html#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.wsisp.com\/helps\/87506.html\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/87506.html#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.wsisp.com\/helps\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u3010Qt\u3011\u7cfb\u7edf\u76f8\u5173\uff08\u4e03\uff09\u7f51\u7edc\u7f16\u7a0b\u8bb2\u89e3\uff0cUDP\u56de\u663e\u670d\u52a1\u5668\u7684\u5b9e\u73b0\uff0cQUdpSocket\u548cQNetworkDatagram\u7684\u8bb2\u89e3\"}]},{\"@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":"\u3010Qt\u3011\u7cfb\u7edf\u76f8\u5173\uff08\u4e03\uff09\u7f51\u7edc\u7f16\u7a0b\u8bb2\u89e3\uff0cUDP\u56de\u663e\u670d\u52a1\u5668\u7684\u5b9e\u73b0\uff0cQUdpSocket\u548cQNetworkDatagram\u7684\u8bb2\u89e3 - \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\/87506.html","og_locale":"zh_CN","og_type":"article","og_title":"\u3010Qt\u3011\u7cfb\u7edf\u76f8\u5173\uff08\u4e03\uff09\u7f51\u7edc\u7f16\u7a0b\u8bb2\u89e3\uff0cUDP\u56de\u663e\u670d\u52a1\u5668\u7684\u5b9e\u73b0\uff0cQUdpSocket\u548cQNetworkDatagram\u7684\u8bb2\u89e3 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","og_description":"\u5c0f\u7f16\u4e2a\u4eba\u4e3b\u9875\u8be6\u60c5&lt;\u2014\u8bf7\u70b9\u51fb \u5c0f\u7f16\u4e2a\u4ebagitee\u4ee3\u7801\u4ed3\u5e93&lt;\u2014\u8bf7\u70b9\u51fb Qt\u7cfb\u5217\u4e13\u680f&lt;\u2014\u8bf7\u70b9\u51fb \u5018\u82e5\u547d\u4e2d\u65e0\u6b64\u8fd0&#xff0c;\u5b64\u8eab\u4ea6\u53ef\u767b\u6606\u4ed1&#xff0c;\u9001\u7ed9\u5c4f\u5e55\u9762\u524d\u7684\u8bfb\u8005\u670b\u53cb\u4eec\u548c\u5c0f\u7f16\u81ea\u5df1! \u76ee\u5f55\u524d\u8a00\u4e00\u3001\u7f51\u7edc\u7f16\u7a0b\u8bb2\u89e3\u4e8c\u3001UDP\u5bf9\u5e94QUdpSocket\u548cQNetworkDatagram\u7684\u63a5\u53e3\u4ecb\u7ecd\u4e09\u3001UDP\u56de\u663e\u670d\u52a1\u5668\u7684\u5b9e\u73b0\u603b\u7ed3\u524d\u8a00 \u3010Qt\u3011\u7cfb\u7edf\u76f8\u5173&#xff08;\u516d&#xff09;QMutex\u9501&#xff0c;QMutexLocker\u7684\u4f7f\u7528&#xff0c;QWaitConditio","og_url":"https:\/\/www.wsisp.com\/helps\/87506.html","og_site_name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","article_published_time":"2026-07-30T05:32:57+00:00","og_image":[{"url":"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260730053254-6a6ae206e8438.gif"}],"author":"admin","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"admin","\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4":"10 \u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.wsisp.com\/helps\/87506.html","url":"https:\/\/www.wsisp.com\/helps\/87506.html","name":"\u3010Qt\u3011\u7cfb\u7edf\u76f8\u5173\uff08\u4e03\uff09\u7f51\u7edc\u7f16\u7a0b\u8bb2\u89e3\uff0cUDP\u56de\u663e\u670d\u52a1\u5668\u7684\u5b9e\u73b0\uff0cQUdpSocket\u548cQNetworkDatagram\u7684\u8bb2\u89e3 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","isPartOf":{"@id":"https:\/\/www.wsisp.com\/helps\/#website"},"datePublished":"2026-07-30T05:32:57+00:00","dateModified":"2026-07-30T05:32:57+00:00","author":{"@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41"},"breadcrumb":{"@id":"https:\/\/www.wsisp.com\/helps\/87506.html#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.wsisp.com\/helps\/87506.html"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.wsisp.com\/helps\/87506.html#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.wsisp.com\/helps"},{"@type":"ListItem","position":2,"name":"\u3010Qt\u3011\u7cfb\u7edf\u76f8\u5173\uff08\u4e03\uff09\u7f51\u7edc\u7f16\u7a0b\u8bb2\u89e3\uff0cUDP\u56de\u663e\u670d\u52a1\u5668\u7684\u5b9e\u73b0\uff0cQUdpSocket\u548cQNetworkDatagram\u7684\u8bb2\u89e3"}]},{"@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\/87506","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=87506"}],"version-history":[{"count":0,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/87506\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/media\/87495"}],"wp:attachment":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/media?parent=87506"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/categories?post=87506"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/tags?post=87506"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/topic?post=87506"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}