#ifndef _MYWINDOWS_H
#define _MYWINDOWS_H
#include <QWidget>
#include <QPushButton>
#include <QLabel>
#include <QLineEdit>//输入栏
#include <QTextEdit>//文本框
#include <QHBoxLayout>//左右
#include <QVBoxLayout>//上下
#include <QTextCodec>
#include <qfile.h>
#include <qtextstream.h>
#include <QIODevice>
class myWindows:public QWidget
{Q_OBJECTprivate:QPushButton *save_bt;QPushButton *cancel_bt;QTextEdit *text_fd;QVBoxLayout *vlayout;QHBoxLayout *hlayout;public:myWindows();~myWindows();public slots:void myfileWrite();
};
#endif

#ifndef _MYWINDOWS_CPP
#define _MYWINDOWS_CPP
#include "myWindows.h"myWindows::myWindows()
{//1、创建组建save_bt = new QPushButton;cancel_bt = new QPushButton;text_fd = new QTextEdit;//初始化组建值save_bt->setText("保存");cancel_bt->setText("删除");text_fd->setPlainText("请在此输入内容...");//2、创建布局管理器vlayout = new QVBoxLayout;hlayout = new QHBoxLayout;//3、将组件添加到布局管理器上vlayout->addWidget(save_bt);vlayout->addWidget(cancel_bt);hlayout->addWidget(text_fd);hlayout->addLayout(vlayout);//4、将布局管理器设置到窗体上setLayout(hlayout);//连接对象 函数与槽connect(save_bt,SIGNAL(clicked()),text_fd,SLOT(myfileWrite()));//保存文本到文件connect(cancel_bt,SIGNAL(clicked()),text_fd,SLOT(clear()));//删除文本框内容
}
void myWindows::myfileWrite()
{   save_bt->setText("阿阿");QFile f("aplmm.txt");f.open(QIODevice::WriteOnly|QIODevice::Append);f.close();f.open(QIODevice::WriteOnly|QIODevice::Append);QTextStream t(&f);t << text_fd->toPlainText();f.close();
}
myWindows::~myWindows()
{delete save_bt;delete cancel_bt;delete text_fd;delete vlayout;delete hlayout;
}
#endif