qt Debug重定向工具，日志保存

#include "QDebugOut.h" #include "QDebugTool.h" #include <QTimer> #include <QDebug> QDebugOut::QDebugOut(QWidget *parent) : QMainWindow(parent) { ui.setupUi(this); auto pTimer = new QTimer(); connect(pTimer, &QTimer::timeout, this, &QDebugOut::slotTimeout); pTimer->start(500); InitDebugTool(); } void QDebugOut::slotTimeout() { static int i = 0; if (++i > 30000) i = 0; QString str = QString("this is num %1").arg(i); qDebug() << str << "\n"; ui.plainTextEdit->appendPlainText(str); }