VS2022联合Qt5开发项目（复杂堆栈窗体）

#include "qtWindowTestx.h" #include "ui_qtWindowTest.h" qtWindowTestx::qtWindowTestx(QWidget* parent) : QWidget(parent) { ui.setupUi(this); button = new QPushButton; button1 = new QPushButton; layout = new QGridLayout(this); edit1 = new QLineEdit; edit2 = new QLineEdit; edit3 = new QLineEdit; edit4 = new QLineEdit; button1->setText("Clear"); button->setText("Output"); connect(button, SIGNAL(clicked(bool)), this, SLOT(on_clicked())); //连接按钮 connect(button1, SIGNAL(clicked(bool)), this, SLOT(on_clicked1())); layout->addWidget(button, 1, 0, Qt::Alignment()); //初始化画图 layout->addWidget(edit1, 0, 0, Qt::Alignment()); //用于初始化控件位置 layout->addWidget(edit2, 0, 1, Qt::Alignment()); layout->addWidget(edit3, 0, 2, Qt::Alignment()); layout->addWidget(edit4, 1, 1, Qt::Alignment()); layout->addWidget(button1, 1, 2, Qt::Alignment()); } void qtWindowTestx::on_clicked() //计算大小 { int a = edit1->text().toInt(); int b = edit3->text().toInt(); QString c = edit2->text(); if (c == "+") { edit4->setText(QString::number(a + b)); } if (c == "-") { edit4->setText(QString::number(a - b)); } if (c == "*") { edit4->setText(QString::number(a * b)); } if (c == "/") { edit4->setText(QString::number(a / b)); } } void qtWindowTestx::on_clicked1() //清除 { edit1->clear(); edit2->clear(); edit3->clear(); edit4->clear(); } qtWindowTestx::~qtWindowTestx() {}