QT day1

1、登录系统

#include "widget.h"
#include "ui_widget.h"

Widget::Widget(QWidget *parent)
    : QWidget(parent)
{
    //设置窗口固定尺寸
    this->setFixedSize(500,400);
    //设置窗口标题
    this->setWindowTitle("登录系统");
    //设置窗口图标
    this->setWindowIcon(QIcon("D:\\QT\\hqyj\\QT\\icon\\QQ.png"));

    //标签
    QLabel *lab1 = new QLabel(this);
    lab1->resize(500,150);
    lab1->setPixmap(QPixmap("D:\\QT\\hqyj\\QT\\icon\\logo.png"));
    lab1->move(0,0);
    lab1->setScaledContents(true);

    QLabel *lab2 = new QLabel(this);
    lab2->resize(60,40);
    lab2->setPixmap(QPixmap("D:\\QT\\hqyj\\QT\\icon\\denglu.png"));
    lab2->move(130,150);
    lab2->setScaledContents(true);

    QLabel *lab3 = new QLabel("密码：",this);
    lab3->resize(lab2->size());
    lab3->move(130,190);
    lab3->setPixmap(QPixmap("D:\\QT\\hqyj\\QT\\icon\\denglumima.png"));
    lab3->setScaledContents(true);

    QLineEdit *edit1 = new QLineEdit(this);
    edit1->resize(200,30);
    edit1->move(190,160);
    //edit1->setStyleSheet("border:none;");
    edit1->setPlaceholderText("QQ号/微信/邮箱");

    QLineEdit *edit2 = new QLineEdit("密码",this);
    edit2->resize(edit1->size());
    edit2->move(190,200);
    edit2->setPlaceholderText("密码");
    edit2->setEchoMode(QLineEdit::Password);

    //登录按钮
    QPushButton *btn1 = new QPushButton;
    btn1->setParent(this);
    btn1->setText("登录");
    btn1->resize(90,30);
    btn1->move(220,240);
    btn1->setIcon(QIcon("D:\\QT\\hqyj\\QT\\icon\\denglu_1.png"));

    //取消按钮
    QPushButton *btn3 = new QPushButton("取消",this);
    btn3->resize(btn1->size());
    btn3->move(220,280);
    btn3->setIcon(QIcon("D:\\QT\\hqyj\\QT\\icon\\quxiao.png"));

}

Widget::~Widget()
{

}

                

 

2、思维导图