1、思维导图
2、 拖拽式
源文件
#include "mywidget.h"
#include "ui_mywidget.h"
MyWidget::MyWidget(QWidget *parent)
: QWidget(parent)
, ui(new Ui::MyWidget)
{
ui->setupUi(this);
//按钮2
this->btn2=new QPushButton("按钮2",this);
btn2->resize(ui->pushButton->size());
btn2->move(ui->pushButton->x(),ui->pushButton->y()+80);
connect(this->btn2,&QPushButton::clicked,this,&MyWidget::bnt2_clicked);
//按钮3
this->btn3 =new QPushButton("按钮3",this);
btn3->resize(ui->pushButton->size());
btn3->move(this->btn2->x(),this->btn2->y()+80);
connect(this->btn3,&QPushButton::clicked,[&](){
qDebug() << "lalalla";
});
}
MyWidget::~MyWidget()
{
delete ui;
}
//通过槽创建的按钮生成的连接
void MyWidget::on_pushButton_clicked()
{
qDebug() << "你点击了按钮1";
}
//按钮2的连接函数
void MyWidget::bnt2_clicked()
{
static int num=0;
if(num%3==0)
{
this->setStyleSheet("background-color:red");
}else if(num%3==1)
{
this->btn2->setStyleSheet("background-color:green");
}
else
{
this->btn2->setStyleSheet("background-color:blue");
}
num++;
}
头文件
#ifndef MYWIDGET_H
#define MYWIDGET_H
#include <QWidget>
#include <QDebug>
#include <QPushButton>
#include <QtTextToSpeech/QTextToSpeech>
QT_BEGIN_NAMESPACE
namespace Ui { class MyWidget; }
QT_END_NAMESPACE
class MyWidget : public QWidget
{
Q_OBJECT
//signals:
// void mySignal(void);
//public slots:
// void mySlots(void);
void bnt2_clicked();
public:
MyWidget(QWidget *parent = nullptr);
~MyWidget();
private slots:
void on_pushButton_clicked();
private:
Ui::MyWidget *ui;
QPushButton *btn2;
QPushButton *btn3;
QTextToSpeech *speecher;
};
#endif // MYWIDGET_H
3、代码式头文件
#ifndef MYWIDGET_H
#define MYWIDGET_H
#include <QWidget>
#include<QIcon> //图标类
#include<QLabel> //标签类
#include<QMovie> //动图类
#include<QLineEdit> //行编辑器类
#include<QPushButton> //按钮类
#include <QDebug>
class MyWidget : public QWidget
{
Q_OBJECT;
QPushButton *btn;
QLineEdit *edit1;
QLineEdit *edit2;
public:
MyWidget(QWidget *parent = nullptr);
~MyWidget();
void signal();
};
#endif // MYWIDGET_H
源文件
#include "mywidget.h"
MyWidget::MyWidget(QWidget *parent)
: QWidget(parent)
{
//==============窗口相关设置=======
this->resize(540,415);
this->setFixedSize(540,415);
//窗口标题
this->setWindowTitle("盗版QQ");
//窗口图标
this->setWindowIcon(QIcon(":/pictrue/qq.png"));
//背景颜色
this->setStyleSheet("background-color:white");
//去掉头部
this->setWindowFlag(Qt::FramelessWindowHint);
//============标签相关设置=======
QLabel *lab1 = new QLabel(this);
//设置大小
lab1->resize(540, 160);
lab1->setStyleSheet("background-color:pink");
//动图类 接收动图
QMovie *mv = new QMovie(":/pictrue/zz.gif");
//将动图放入标签中
lab1->setMovie(mv);
//让动图动起来
mv->start();
//自动适应
lab1->setScaledContents(true);
QLabel *lab2 = new QLabel(this);
lab2->resize(30,30);
lab2->move(120,210);
lab2->setPixmap(QPixmap(":/pictrue/wodepeizhenshi.png"));
lab2->setScaledContents(true);
QLabel *lab3 = new QLabel(this);
lab3->resize(30,30);
lab3->move(120, 260);
lab3->setPixmap(QPixmap(":/pictrue/passwd.jpg"));
lab3->setScaledContents(true);
//============行编辑器相关设置=======
QLineEdit *edit1 = new QLineEdit(this);
edit1->resize(275,30);
edit1->move(155,210);
edit1->setPlaceholderText("QQ号/手机号/邮箱");
QLineEdit *edit2 = new QLineEdit(this);
edit2->resize(275,30);
edit2->move(155,260);
edit2->setPlaceholderText("密码");
edit2->setEchoMode(QLineEdit::Password);
//============按钮相关设置=======
QPushButton *btn = new QPushButton("登录",this);
btn->resize(300,45);
btn->move(120,345);
//样式函数setStyleSheet()
btn->setStyleSheet("background-color:rgb(8,189,253);border-radius:5px;color:white");
// connect(btn,&QPushButton::clicked,edit1,&QLineEdit::textChanged);
// connect(btn,&QPushButton::clicked,edit2,&QLineEdit::textChanged);
connect(edit1,&QLineEdit::textChanged,this,&MyWidget::signal);
connect(edit2,&QLineEdit::textChanged,this,&MyWidget::signal);
}
MyWidget::~MyWidget()
{
}
void MyWidget::signal()
{
if(edit1->text().size()>=5 && edit2->text().size()>=5){
btn->setStyleSheet("background-color:green");
}
if(edit1->text()=="paomao"&&edit2->text()=="555555")
{
qDebug() << "登录成功";
this->close();
}
else
{
qDebug() << "登录失败，密码账号有错误，请重新输入";
edit1->clear();
edit2->clear();
}
}