QT: list box, table, tree control

One 、 List box

#include "widget.h"

#include <QApplication>
#include <QListWidget>
#include <QStringList>
#include <QTableWidget>
#include <QTreeWidget>
int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    Widget w;
QListWidget lw(&w);                                                            
lw.move(100,200);                                                              
lw.resize(100,200);                                                            
                                                                               
lw.addItem(" Baidu ");                                                              
lw.addItem(new QListWidgetItem(" tencent "));                                         
  QStringList qstr;                                                            
  qstr << " Alibaba " << " Bytes to beat " ;                                                   
lw.addItems(QStringList() << " Alibaba " << " Bytes to beat ");                                
                                                                               
QObject::connect(&lw,&QListWidget::itemDoubleClicked,&lw,&QListWidget::clear); 
    w.show();
    return a.exec();

}

Output ：

 

Two 、 form

#include "widget.h"

#include <QApplication>
#include <QListWidget>
#include <QStringList>
#include <QTableWidget>
#include <QTreeWidget>


int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    Widget w;
QTableWidget tw(3,3,&w);
    tw.move(100,100);
    tw.resize(500,400);

    tw.setHorizontalHeaderLabels(QStringList() << " Enterprises " << " website " << " founder ");

    tw.setItem(0,0,new QTableWidgetItem(" Baidu "));
    tw.setItem(0,1,new QTableWidgetItem("www.baidu.com"));
    tw.setItem(0,2,new QTableWidgetItem(" Robin Li "));

    tw.setItem(1,0,new QTableWidgetItem(" tencent "));
    tw.setItem(1,1,new QTableWidgetItem("www.qq.com"));
    tw.setItem(1,2,new QTableWidgetItem(" ma "));

    tw.setItem(2,0,new QTableWidgetItem(" Alibaba "));
    tw.setItem(2,1,new QTableWidgetItem("www.1688.com"));
    tw.setItem(2,2,new QTableWidgetItem(" Jack ma, "));

    tw.setRowCount(tw.rowCount() + 1);

    tw.setItem(3,0,new QTableWidgetItem(" Bytes to beat "));
    tw.setItem(3,1,new QTableWidgetItem("www.bytedance.com"));
    tw.setItem(3,2,new QTableWidgetItem(" Zhang Yiming "));

    QObject::connect(&tw,&QTableWidget::cellDoubleClicked,&tw,&QTableWidget::removeRow);

   w.show();
    return a.exec();

}

Output ：

 

3、 ... and 、 Tree control

#include "widget.h"

#include <QApplication>
#include <QListWidget>
#include <QStringList>
#include <QTableWidget>
#include <QTreeWidget>
tw.move(100,100);
    tw.resize(300,200);

    QTreeWidgetItem topItem(&tw);
    topItem.setText(0," website ");
    //tw.addTopLevelItem(&topItem);
    QTreeWidgetItem Bd(&topItem,QStringList() << " Baidu ");
    QTreeWidgetItem BdUrl(&Bd,QStringList() << "www.baidu.com");
    QTreeWidgetItem Tx(&topItem,QStringList() << " tencent ");
    QTreeWidgetItem TxUrl(&Tx,QStringList() << "www.qq.com");
   w.show();
    return a.exec();

}

Output ：