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本帖最后由 Qt1442 于 2018-1-6 22:23 编辑 void Widget :: on_pushButton_clicked(){ QString Film_Name="芳华 " ; QString Douban="豆瓣电影" ; int Widget ::Write_Html( const QString Douban_FN) { QByteArray Decode_Baidu = (Douban_FN.toUtf8()).toPercentEncoding(); //中文字符转码解码 QString Result_Url= "https://www.baidu.com/s?wd=" +Decode_Baidu+ "&ie=UTF-8" ; //拼合链接 QUrl url(Result_Url); ui -> label ->setText(Result_Url); QDesktopServices :: openUrl(Result_Url); QNetworkAccessManager manager; QEventLoop loop; QTextCodec *codec; QNetworkReply *reply; QString codeContent; const QString File_Name = "Baidu_Code.html" ; qDebug () << "Reading html code form " << Result_Url; reply = manager.get( QNetworkRequest (url)); //请求结束并下载完成后，退出子事件循环 QObject ::connect(reply, SIGNAL (finished()), &loop, SLOT (quit())); //开启子事件循环 loop.exec(); //获取源码，打开文件 QFile Http_File(File_Name); if ( !Http_File. open ( QIODevice :: WriteOnly | QIODevice :: Text ) ) { qDebug () << "Cannot open the file: " << File_Name; return 0 ; } QTextStream out(&Http_File); = reply->readAll(); //将获取到的网页源码写入文件。一定要注意编码问题，否则很容易出现乱码的 = QTextCodec ::codecForHtml(codeContent.toUtf8()); = codec->toUnicode(codeContent.toUtf8()); << codeContent << endl; close qDebug () << "Finished, the code have written to " << File_Name;return 0 ;Starting F:\Qt\build-href-Desktop_Qt_5_8_0_MinGW_32bit-Debug\debug\href.exe... Reading html code form "https://www.baidu.com/s?wd=%E8%8A%B3%E5%8D%8E%20%E8%B1%86%E7%93%A3%E7%94%B5%E5%BD%B1&ie=UTF-8" Finished, the code have written to "Baidu_Code.html" F:\Qt\build-href-Desktop_Qt_5_8_0_MinGW_32bit-Debug\debug\href.exe exited with code 0
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