#include <QtWidgets/QApplication>
#include <QTextCodec>
#include <QLabel>
#pragma execution_character_set("utf-8")
int main(int argc, char *argv[])
{
  　　QApplication app(argc,argv);
  　　QLabel hello(QObject::tr("你好世界"));
  　　hello.setWindowTitle(QObject::tr("Qt中文显示"));
  　　hello.show();
  　　return app.exec();
}