qt子父窗体切换.7z

#include "mainwindow.h" #include "ui_mainwindow.h" MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWindow) { child = new childwindow(); child->resize( QSize( 300, 200 )); ui->setupUi(this); this->resize(QSize(800,600)); connect(ui->pushButton,SIGNAL(clicked()),this,SLOT(ToChild())); } MainWindow::~MainWindow() { delete ui; } void MainWindow::ToChild() { //this->hide(); child->show(); }