QT之QTableWidget基本使用杨杨子江的博客-

#include "widget.h" #include "ui_widget.h" #include<QMessageBox>  Widget::Widget(QWidget *parent) : QWidget(parent), ui(new Ui::Widget) {     ui->setupUi(this); //tableWidget表格控件使用 //设置列数     ui->tableWidget->setColumnCount(3); //设置水平表头     ui->tableWidget->setHorizontalHeaderLabels(QStringList()<<"姓名"<<"性别"<<"年龄"); //设置行数     ui->tableWidget->setRowCount(5);      QList<QString> nameList;     nameList << "亚瑟"<< "安琪拉"<<"妲己"<<"东皇太一"<< "孙膑";     QStringList sexList;     sexList << "男"<< "女"<< "女"<< "男"<< "中立"; 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))); //int 转 QString   QString::number(int)         ui->tableWidget->setItem(i,col++, new QTableWidgetItem( QString::number(i+18) )); } //点击按钮添加 后羿 connect(ui->addBtn,&QPushButton::clicked,[=](){ bool isEmpty = ui->tableWidget->findItems("后羿",QT::MatchExactly).empty(); if(isEmpty){    ui->tableWidget->insertRow(0);    ui->tableWidget->setItem(0,0,new QTableWidgetItem("后羿"));    ui->tableWidget->setItem(0,1,new QTableWidgetItem("男"));    ui->tableWidget->setItem(0,2,new QTableWidgetItem( QString::number(i+18) )); } else{    QMessageBox::warning(this,"Warning！已拥有后羿！"); } }); //点击按钮删除 后羿 connect(ui->delBtn,&QPushButton::clicked,[=](){ bool isEmpty = ui->tableWidget->findItems("后羿",QT::MatchExactly).empty(); if(isEmpty){    QMessageBox::warning(this,"Warning！没有后羿！"); } else{ //先找到赵云所在的行数 int row_tmp = ui->tableWidget->findItems("后羿",QT::MatchExactly).first()->row();    ui->tableWidget->removeRow(row_tmp); } }); }  Widget::~Widget() { delete ui; }