QT开发平台

草根聪 2012-11-26 04:08:44

我在ubuntu下面安装了一个QT开发工具，但是后面进入QT Creator后，直接运行example都不行，我主要目的是
在源文件有的情况下，可以运行出一个出来，这是一个的猜数字游戏（网上下载的）
main.cpp



#include <QApplication>

#include "newfile.h"

//

int main(int argc, char ** argv)

{

	QApplication app( argc, argv );

	mywidget win;

	win.show(); 



	return app.exec();

}

newfile.cpp



#include <QtGui> 



 

#include "newfile.h" 

 

mywidget::mywidget(QWidget* parent):QWidget(parent) 

{ 

  label=new QLabel("time:");

  addButton=new QPushButton("Input"); 

  newButton=new QPushButton("New");

  edit=new QLineEdit(); 

  edittime=new QLineEdit("1");

  edittime->setReadOnly(true);

  val = rand() % 99 + 0;

  time=1;

  connect(  addButton,SIGNAL(clicked()),this,SLOT(estimate())); 

  connect(  newButton,SIGNAL(clicked()),this,SLOT(newgame())); 

  

    QHBoxLayout *HLayout = new QHBoxLayout;

    HLayout->addWidget(label);

    HLayout->addWidget(edittime);



    QVBoxLayout *VLayout = new QVBoxLayout;

    VLayout->addLayout(HLayout);

    VLayout->addWidget( edit);

    VLayout->addWidget(addButton);

    VLayout->addWidget(newButton);

    setLayout(VLayout); 

    setWindowTitle(QObject::trUtf8("猜数字了"));//设置标题 

} 

void mywidget::estimate()

{   QString stemp;

	

    float ltemp;

    ltemp=edit->text().toFloat();

    stemp=QString::number(time);

    edittime->setText(stemp);

    time++;

    if(ltemp>val)

    {

    	 QMessageBox::about(this, tr("Message"),

            QObject::trUtf8("<h2>大了</h2>"));

               

         

   	}

    if(ltemp<val)

    {

    	 QMessageBox::about(this, tr("Message"),

            QObject::trUtf8("<h2>小了</h2>"));

             

   	}

     if(ltemp==val)

    {

    	 QMessageBox::about(this, tr("Message"),

           QObject::trUtf8("<h2>猜对了！！</h2>"));

         

   	} 	

    

}

void mywidget::newgame()

{   

	QString stemp;

	time=1;

	stemp=QString::number(time);

    edittime->setText(stemp);

    edit->setText("");

    val = rand() % 99 + 0;	



}

newfile.h



#ifndef __NEWFILE_H__

#define __NEWFILE_H__

#include <QWidget> 

#include <QHBoxLayout> 

#include <QVBoxLayout> 

#include <QApplication> 

#include <QLabel> 

#include <QObject>  

class QLineEdit; 

class QTextEdit; 

class QPushButton; 



 

class mywidget:public QWidget 

{ 



Q_OBJECT 



public: 

  mywidget(QWidget* parent=0);

private slots:

       void estimate();

       void newgame();

private: 

  QPushButton*   addButton;

  QPushButton*   newButton;

  QLabel* label;

  QLineEdit *edittime; 

  QLineEdit *edit; 

  int val ;

  int time;

   };

#endif // __NEWFILE_H__