Create Project & Generate .ts
lupdate TestInternational.pro -ts zh_CN.ts
Translate with Linguist
Save & Release to Generate .qm
Add Code to Choose Language
#include "widget.h"
#include <QApplication>
#include <QTranslator>
#include <QDebug>
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
QTranslator trans;
if(trans.load(a.applicationDirPath() + "/../../../zh_CN.qm"))
a.installTranslator(&trans);
Widget w;
w.show();
return a.exec();
}