QtCreator 用纯代码编写应用程序与命令行编译

添加空程序添加C++ source file: main.cpp
#include <QApplication>

#include <QDialog>

#include <QLabel>

int main(int argc, char** argv) {

QApplication app(argc,argv);

QDialog w;

QLabel lbl(&w);

lbl.setText("hello,你好！");

w.show();

return app.exec();

}

需要界面的QT程序都必须要在，*.pro文件里面加下面的语句QT += core guigreaterThan(QT_MAJOR_VERSION, 4): QT += widgets避免中文出现乱码

#include <QApplication>

#include <QDialog>

#include <QLabel>

#include <QTextCodec>

int main(int argc, char** argv) {

QApplication app(argc,argv);

QTextCodec::setCodecForLocale(QTextCodec::codecForLocale());

QDialog w;

QLabel lbl(&w);

lbl.setText(QObject::tr("你好！"));

w.show();

return app.exec();

}

qmake -projectqmakemake