新手初学QT,载入UI的有关问题向大神们请问_QT开发

新手初学QT,载入UI的问题向大神们请教
在网上抄了使用UI的几段代码.发现运行不起来.代码如下,请大神帮忙看一下问题,不胜感激
UI文件的名称是 RegDialog.ui
main.cpp:

C/C++ code

#include <QApplication>#include "RegDlalog.h"int main(int argc, char *argv[]){    QApplication app(argc, argv);    RegDlalog *dialog = new RegDlalog;    dialog->show();    return app.exec();}

RegDialog.h:

C/C++ code

#ifndef REGDLALOG_H#define REGDLALOG_H#include <QDialog>#include <QWidget>#include "ui_RegDialog.h"namespace Ui{    class RegDialog;}class RegDialog : public QWidget{    Q_OBJECTpublic:    RegDialog(QWidget *parent = 0);    ~RegDialog();private:    Ui::RegDialog *ui;};#endif // REGDLALOG_H

RegDialog.cpp

C/C++ code

#include <QtGui>#include "RegDlalog.h"#include "ui_RegDialog.h"RegDialog::RegDialog(QWidget *parent) :    QWidget(this),    ui(new Ui::RegDialog){    ui->setupUi(this);}RegDialog::~RegDialog(){    delete ui;}

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