请问下waitForReadyRead的用法
//QNetworkReply *currentDownload;
//QNetworkAccessManager manager;
QUrl url("http://www.baidu.com");
QNetworkRequest request(url);
currentDownload = manager.get(request);
while( currentDownload->waitForReadyRead(-1))
{
QByteArray qba = currentDownload ->readAll();
}
while无法返回true,请问是什么原因啊?