QT从入门到实战完整版 P24 P25 P26 P27 P28-526互联

#include "widget.h"
#include "ui_widget.h"
#include <QDebug>

Widget::Widget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::Widget)
{
    ui->setupUi(this);
    //设置单选按钮 男默认选中
    ui->radioButtonman->setChecked(true);
    //选中女后，打印信息
    connect(ui->radioButtonwoman,&QRadioButton::clicked,[=](){
        qDebug()<<"选中了女生";
    });
    //多选按钮 2是选中 0是未选中 1是半选中
    connect(ui->checkBox_1,&QCheckBox::stateChanged,[=](int state){
        qDebug()<<state;
    });
}

Widget::~Widget()
{
    delete ui;
}

#include "widget.h"
#include "ui_widget.h"
#include <QDebug>

Widget::Widget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::Widget)
{
    ui->setupUi(this);
    //设置单选按钮 男默认选中
    ui->radioButtonman->setChecked(true);
    //选中女后，打印信息
    connect(ui->radioButtonwoman,&QRadioButton::clicked,[=](){
        qDebug()<<"选中了女生";
    });
    //多选按钮 2是选中 0是未选中 1是半选中
    connect(ui->checkBox_1,&QCheckBox::stateChanged,[=](int state){
        qDebug()<<state;
    });
    //利用listwidget写诗
    //QListWidgetItem * item=new QListWidgetItem("锄禾日当午");
    //ui->listWidget->addItem(item);//将一行诗放入到listWidget控件中
    //item->setTextAlignment(Qt::AlignHCenter);

    //QStringList QList<QString>
    QStringList list;
    list<<"锄禾日当午"<<"汗滴禾下土";
    ui->listWidget->addItems(list);
}

Widget::~Widget()
{
    delete ui;
}

#include "widget.h"
#include "ui_widget.h"
#include <QDebug>

Widget::Widget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::Widget)
{
    ui->setupUi(this);
    //treeWidget树控件使用
    //设置水平头
    ui->treeWidget->setHeaderLabels(QStringList()<<"英雄"<<"英雄介绍");
    QTreeWidgetItem * litem=new QTreeWidgetItem(QStringList()<<"力量");
    QTreeWidgetItem * mintem=new QTreeWidgetItem(QStringList()<<"敏捷");
    QTreeWidgetItem * zhitem=new QTreeWidgetItem(QStringList()<<"智力");
    //加载顶层的节点
    ui->treeWidget->addTopLevelItem(litem);
    ui->treeWidget->addTopLevelItem(mintem);
    ui->treeWidget->addTopLevelItem(zhitem);
    //追加子节点
    QStringList herol1;
    herol1<<"猪八戒"<<"前排坦克，能在吸收伤害的同时造成可观的范围输出";
    QTreeWidgetItem *l1=new  QTreeWidgetItem(herol1);
    litem->addChild(l1);
}

Widget::~Widget()
{
    delete ui;
}

#include "widget.h"
#include "ui_widget.h"
#include <QDebug>

Widget::Widget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::Widget)
{
    ui->setupUi(this);
    //tabwidget控件 设置列数 设置列数
    ui->tableWidget->setColumnCount(3);
    ui->tableWidget->setRowCount(5);
    //设置水平表头
    ui->tableWidget->setHorizontalHeaderLabels(QStringList()<<"姓名"<<"性别"<<"年龄");
    //设置正文
    //ui->tableWidget->setItem(0,0,new QTableWidgetItem("亚瑟"));
    QStringList nameList;
    nameList<<"亚瑟"<<"赵云"<<"猪八戒"<<"孙悟空"<<"花木兰";
    QList<QString> sexList;
    sexList<<"男"<<"男"<<"男"<<"男"<<"女";
    for(int i=0;i<5;i++)
    {
        int col=0;
        ui->tableWidget->setItem(i,col++,new QTableWidgetItem(nameList[i]));
        ui->tableWidget->setItem(i,col++,new QTableWidgetItem(sexList.at(i)));
        ui->tableWidget->setItem(i,col++,new QTableWidgetItem(QString::number(i+18)));
    }
}
Widget::~Widget()
{
    delete ui;
}

#include "widget.h"
#include "ui_widget.h"
#include <QDebug>
#include <QMovie>

Widget::Widget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::Widget)
{
    ui->setupUi(this);
    //栈控件使用
    //设置默认页面定位 pushButton
    ui->stackedWidget->setCurrentIndex(1);
    connect(ui->pushButton,&QPushButton::clicked,[=](){
        ui->stackedWidget->setCurrentIndex(1);
    });
    connect(ui->pushButton_2,&QPushButton::clicked,[=](){
        ui->stackedWidget->setCurrentIndex(0);
    });

    //下拉框
    ui->comboBox->addItem("奔驰");
    ui->comboBox->addItem("宝马");
    ui->comboBox->addItem("拖拉机");

    //点击按钮，选中拖拉机选项
    connect(ui->pushButtontlj,&QPushButton::clicked,[=](){
        //ui->comboBox->setCurrentIndex(2);
        ui->comboBox->setCurrentText("拖拉机");
    });

    //利用Qlabel显示图片
    ui->lable_1->setPixmap(QPixmap(":/rec/t1.jpg"));
    //利用QLabel显示gif动态图片
    QMovie * movie=new QMovie(":/rec/mario.gif");
    ui->label_2->setMovie(movie);
    //播放动图
    movie->start();
}
Widget::~Widget()
{
    delete ui;
}