我国哪些网站是做调查问卷的,做emu对网站有什么要求,选一个网站做seo,住房城乡建设部网站首页实现效果#xff1a;
点击登录#xff0c;检验用户密码是否正确#xff0c;正确则弹出消息框#xff0c;点击ok转到另一个页面 不正确跳出错误消息框#xff0c;默认选线为Cancel#xff0c;点击Yes继续登录 点击Cancel跳出问题消息框#xff0c;默认选项No#xff0c…实现效果
点击登录检验用户密码是否正确正确则弹出消息框点击ok转到另一个页面 不正确跳出错误消息框默认选线为Cancel点击Yes继续登录 点击Cancel跳出问题消息框默认选项No单击yes,退出程序单击No继续登录 以下是实现的部分代码
widget.h
#ifndef WIDGET_H
#define WIDGET_H#include QWidget //基类QWidget的头文件
#includeQDebug //信息调试类用于输出数据使用
#includeQIcon
#includeQPushButton
#includeQLabel
#includeQLineEdit
#includeQPixmap
#includeenter_widget.h
#includecommunication.h
#includeQMessageBox
class Widget : public QWidget
{Q_OBJECT //QT的信号与槽元对象public:Widget(QWidget *parent nullptr);//默认参数构造函数声明~Widget();//虚析构声明
private:QLabel *pic;QLabel *tx;QPushButton* enter;QPushButton* login;QPushButton* question;QLabel* user;QLabel* passwd;QLineEdit* user_l;QLineEdit* passwd_l;enter_widget* en;QTimer * time;
};
#endif // WIDGET_H
widget.cpp
#include widget.h
#includeQDebug
Widget::Widget(QWidget *parent): QWidget(parent)
{qDebug()this-size(); //获取当前姐买你的尺寸qDebug()this-width(); //获取当前组件的宽度qDebug()this-height(); //获取当前组件的高度this-setWindowTitle(QQ);//this-resize(500,400);//重新设置界面大小//this-resize(QSize(1000,1000));this-setFixedSize(500,400);//设置固定的界面大小//this-setMaximumSize(600,700);//最大界面大小//this-setMinimumSize(200,300);//最小界面大小this-setWindowIcon(QIcon(://msg/qq.png));pic new QLabel(this);pic-resize(this-width(),130);pic-setPixmap(QPixmap(://msg/fm.png));pic-setScaledContents(true);tx new QLabel(this);tx-resize(100,100);tx-move(200,60);tx-setPixmap(QPixmap(://msg/2.jpg));tx-setScaledContents(true);enter new QPushButton;enter-setParent(this);enter-setText(登录);enter-resize(100,50);enter-move(120,300);enter-setIcon(QIcon(://msg/enter.png));enter-setStyleSheet(border:0px solid black;border-radius:10;background-color:#FFFFFF);login new QPushButton;login-setParent(this);login-setText(注册);login-resize(100,50);login-move(280,300);login-setIcon(QIcon(://msg/enter.png));login-setStyleSheet(border:0px solid black;border-radius:10;background-color:#FFFFFF);// question new QPushButton;
// question-setParent(this);
// question-setText(问题);
// question-resize(50,50);
// question-move(390,300);
// question-setStyleSheet(border:0px solid black;border-radius:10;background-color:#FFFFFF);user new QLabel;user-setParent(this);user-setText(用户名:);user-resize(60,30);user-setAlignment(Qt::AlignCenter);//user-setFixedSize(50,20);user-move(enter-x(),enter-y()-120);passwd new QLabel(this);passwd-setText(密 码:);passwd-resize(60,30);passwd-setAlignment(Qt::AlignCenter);//user-setFixedSize(50,20);passwd-move(enter-x(),enter-y()-60);user_l new QLineEdit(this);user_l-resize(200,30);user_l-move(user-x()60,user-y());user_l-setPlaceholderText(请输入用户名);user_l-setStyleSheet(border:0px solid black;border-radius:10;background-color:#b0bfbf);passwd_l new QLineEdit(this);passwd_l-resize(200,30);passwd_l-move(passwd-x()60,passwd-y());passwd_l-setPlaceholderText(请输入密码);passwd_l-setEchoMode(QLineEdit::Password);passwd_l-setStyleSheet(border:0px solid black;border-radius:10;background-color:#b0bfbf);//切换界面//会话界面en new enter_widget;//交流界面com new communication;connect(enter,QPushButton::clicked,[](){if(user_l-text()QString(admin) passwd_l-text() 123456){QMessageBox succbox(QMessageBox::NoIcon,登录,登录成功,QMessageBox::Ok,enter);int err succbox.exec();if(err QMessageBox::Ok){this-close();com-show();}}else{int err QMessageBox::critical(this,tr(错误),tr(账号密码不匹配是否重新登录),QMessageBox::Yes | QMessageBox::Cancel,QMessageBox::Cancel);if(err QMessageBox::Cancel){int ques QMessageBox::question(this,tr(问题),tr(是否退出),QMessageBox::Yes | QMessageBox::No,QMessageBox::No);if(ques QMessageBox::Yes){this-close();}}this-user_l-clear();this-passwd_l-clear();}});}
Widget::~Widget()
{
}
