qt_show.zip_qtcreator_show

#include "mainwindow.h" #include "ui_mainwindow.h" MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWindow) { ui->setupUi(this); } MainWindow::~MainWindow() { delete ui; } void MainWindow::on_but_show_clicked() { ui->text->setText("hello.QT!!!"); } void MainWindow::on_but_show_2_clicked() { ui->text->setText(" "); } void MainWindow::on_pushButton_2_clicked() { this->close(); }