{"id":97152,"date":"2024-10-20T15:26:15","date_gmt":"2024-10-20T07:26:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/97152\/"},"modified":"2024-10-20T15:26:16","modified_gmt":"2024-10-20T07:26:16","slug":"qt%e5%af%a6%e7%8f%be%e5%a4%a7%e6%95%b8%e6%93%9a%e5%ba%ab%e5%b0%8d%e8%b1%a1%e4%b9%8b%e9%96%93%e5%82%b3%e9%81%9e-qt-%e5%b0%8d%e8%b1%a1%e9%96%93%e5%82%b3%e9%81%9e%e5%a4%a7%e6%95%b8%e6%93%9a%e5%ba%ab","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/97152\/","title":{"rendered":"Qt\u5be6\u73fe\u5927\u6578\u64da\u5eab\u5c0d\u8c61\u4e4b\u9593\u50b3\u905e (qt \u5c0d\u8c61\u9593\u50b3\u905e\u5927\u6578\u64da\u5eab)"},"content":{"rendered":"<h1 id=\"qt%e5%af%a6%e7%8f%be%e5%a4%a7%e6%95%b8%e6%93%9a%e5%ba%ab%e5%b0%8d%e8%b1%a1%e4%b9%8b%e9%96%93%e5%82%b3%e9%81%9e-RgtTBwrApf\">Qt\u5be6\u73fe\u5927\u6578\u64da\u5eab\u5c0d\u8c61\u4e4b\u9593\u50b3\u905e<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u8edf\u9ad4\u958b\u767c\u4e2d\uff0cQt\u4f5c\u70ba\u4e00\u500b\u8de8\u5e73\u53f0\u7684\u61c9\u7528\u7a0b\u5f0f\u6846\u67b6\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u684c\u9762\u548c\u5d4c\u5165\u5f0f\u7cfb\u7d71\u7684\u958b\u767c\u3002\u96a8\u8457\u5927\u6578\u64da\u6280\u8853\u7684\u8208\u8d77\uff0c\u5982\u4f55\u5728Qt\u4e2d\u6709\u6548\u5730\u5be6\u73fe\u5927\u6578\u64da\u5eab\u5c0d\u8c61\u4e4b\u9593\u7684\u50b3\u905e\u6210\u70ba\u4e86\u4e00\u500b\u91cd\u8981\u7684\u8ab2\u984c\u3002\u672c\u6587\u5c07\u63a2\u8a0eQt\u5728\u5927\u6578\u64da\u5eab\u5c0d\u8c61\u50b3\u905e\u4e2d\u7684\u61c9\u7528\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"%e5%a4%a7%e6%95%b8%e6%93%9a%e5%ba%ab%e5%b0%8d%e8%b1%a1%e7%9a%84%e6%a6%82%e5%bf%b5-RgtTBwrApf\">\u5927\u6578\u64da\u5eab\u5c0d\u8c61\u7684\u6982\u5ff5<\/h2>\n<p>\u5927\u6578\u64da\u5eab\u5c0d\u8c61\u901a\u5e38\u6307\u7684\u662f\u5728\u6578\u64da\u5eab\u4e2d\u5b58\u5132\u7684\u8907\u96dc\u6578\u64da\u7d50\u69cb\uff0c\u9019\u4e9b\u7d50\u69cb\u53ef\u80fd\u5305\u62ec\u591a\u500b\u8868\u683c\u3001\u95dc\u806f\u548c\u7d22\u5f15\u3002\u9019\u4e9b\u5c0d\u8c61\u7684\u50b3\u905e\u6d89\u53ca\u5230\u6578\u64da\u7684\u5e8f\u5217\u5316\u548c\u53cd\u5e8f\u5217\u5316\uff0c\u7279\u5225\u662f\u5728\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u6578\u64da\u9700\u8981\u5728\u4e0d\u540c\u7684\u7bc0\u9ede\u4e4b\u9593\u9032\u884c\u50b3\u905e\u3002<\/p>\n<h2 id=\"qt%e4%b8%ad%e7%9a%84%e6%95%b8%e6%93%9a%e5%82%b3%e9%81%9e-RgtTBwrApf\">Qt\u4e2d\u7684\u6578\u64da\u50b3\u905e<\/h2>\n<p>\u5728Qt\u4e2d\uff0c\u6578\u64da\u7684\u50b3\u905e\u53ef\u4ee5\u901a\u904e\u591a\u7a2e\u65b9\u5f0f\u5be6\u73fe\uff0c\u5305\u62ec\u4fe1\u865f\u8207\u69fd\u3001QVariant\u3001JSON\u7b49\u3002\u9019\u4e9b\u65b9\u6cd5\u5404\u6709\u512a\u7f3a\u9ede\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6839\u64da\u5177\u9ad4\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u65b9\u5f0f\u3002<\/p>\n<h3 id=\"1-%e4%bf%a1%e8%99%9f%e8%88%87%e6%a7%bd-RgtTBwrApf\">1. \u4fe1\u865f\u8207\u69fd<\/h3>\n<p>Qt\u7684\u4fe1\u865f\u8207\u69fd\u6a5f\u5236\u662f\u4e00\u7a2e\u5f37\u5927\u7684\u4e8b\u4ef6\u8655\u7406\u6a5f\u5236\uff0c\u5141\u8a31\u5c0d\u8c61\u4e4b\u9593\u9032\u884c\u901a\u4fe1\u3002\u7576\u4e00\u500b\u5c0d\u8c61\u767c\u51fa\u4fe1\u865f\u6642\uff0c\u53e6\u4e00\u500b\u5c0d\u8c61\u53ef\u4ee5\u63a5\u6536\u5230\u9019\u500b\u4fe1\u865f\u4e26\u57f7\u884c\u76f8\u61c9\u7684\u69fd\u51fd\u6578\u3002\u9019\u7a2e\u65b9\u5f0f\u7279\u5225\u9069\u5408\u65bc\u9700\u8981\u5373\u6642\u53cd\u61c9\u7684\u5834\u666f\u3002<\/p>\n<pre><code>\nclass DataSender : public QObject {\n    Q_OBJECT\npublic:\n    void sendData(const QString &amp;data) {\n        emit dataSent(data);\n    }\nsignals:\n    void dataSent(const QString &amp;data);\n};\n\nclass DataReceiver : public QObject {\n    Q_OBJECT\npublic slots:\n    void receiveData(const QString &amp;data) {\n        qDebug() &lt;&lt; &quot;Received data:&quot; &lt;&lt; data;\n    }\n};\n\n\/\/ \u4f7f\u7528\u793a\u4f8b\nDataSender sender;\nDataReceiver receiver;\nQObject::connect(&amp;sender, &amp;DataSender::dataSent, &amp;receiver, &amp;DataReceiver::receiveData);\n<\/code><\/pre>\n<h3 id=\"2-qvariant-RgtTBwrApf\">2. 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