在main.cpp里面设置
#include <qapplication.h>
#include "mainform.h"
#include <qtextcodec.h>
int main( int argc, char ** argv )
{
QApplication a( argc, argv );
QTextCodec::setCodecForTr (QTextCodec::codecForName("GB2312"));
QTextCodec::setCodecForLocale(QTextCodec::codecForName("GB2312"));
MainForm w;
w.show();
a.connect( &a, SIGNAL( lastWindowClosed() ), &a, SLOT( quit() ) );
return a.exec();
}
关键是下面这三行
#include <qtextcodec.h>
QTextCodec::setCodecForTr (QTextCodec::codecForName("GB2312"));
QTextCodec::setCodecForLocale(QTextCodec::codecForName("GB2312"));