把qDebug()<<的输出重定向到文件debuglog.txt上。。并且设置了输出的格式为:时间+输出内容+换行;
#include
#include
#include
void customMessageHandler(QtMsgType type, const char *msg)
{
QString txt;
switch (type)
{
case QtDebugMsg:
txt = QString(" %1").arg(msg);
break;
case QtWarningMsg:
txt = QString("Warning: %1").arg(msg);
break;
case QtCriticalMsg:
txt = QString("Critical: %1").arg(msg);
break;
case QtFatalMsg:
txt = QString("Fatal: %1").arg(msg);
abort();
}
QTime l_time = QTime::currentTime();
QDate l_Date = QDate::currentDate();
QString l_strDate = l_Date.toString("MM.dd");
QString l_strTime = l_time.toString("hh:mm:ss");
l_strDate.append(" ");
l_strDate.append(l_strTime);
QFile outFile("debuglog.txt");
outFile.open(QIODevice::WriteOnly | QIODevice::Append);
QTextStream ts(&outFile);
ts << l_strDate<< " " << txt << endl;
}
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
qInstallMsgHandler(customMessageHandler);
。。。。。
}