运行结果：
点击按钮1：
界面纯代码编写
以下是源码：
QtGuiApplication7.h
代码语言：javascript复制#pragma once
#include <QtWidgets/QMainWindow>
#include "ui_QtGuiApplication7.h"
class QtGuiApplication7 : public QMainWindow
{
Q_OBJECT
public:
QtGuiApplication7(QWidget *parent = Q_NULLPTR);
private:
Ui::QtGuiApplication7Class ui;
private slots:
void on_btn2_clicked();
void on_btn1_clicked();
void warning();
};
QtGuiApplication7.cpp
代码语言：javascript复制#include "QtGuiApplication7.h"
#include <qpushbutton.h>
#include <QMessageBox>
#include <qcombobox.h>
#include <qradiobutton.h>
#include <qlabel.h>
#include <qtableview.h>
#include <qstandarditemmodel.h>
#include <qtextedit.h>
#if _MSC_VER >= 1600
#pragma execution_character_set("utf-8")
#endif
QPushButton *btn1, *btn2;
QRadioButton *qbtn1, *qbtn2;
QtGuiApplication7::QtGuiApplication7(QWidget *parent)
: QMainWindow(parent)
{
ui.setupUi(this);
/*实例化两个按钮，并建立信号与槽的关系*/
btn1 = new QPushButton(this);
btn1->setGeometry(20, 60, 80, 40);
btn1->setText("测试1");
btn2 = new QPushButton(this);
btn2->setGeometry(120, 60, 80, 40);
btn2->setText("测试2");
/*实例化一个QComboBox，添加值后选择第三个值*/
QComboBox *cmb = new QComboBox(this);
//方法-
cmb->addItem("选项1");
cmb->addItem("选项2");
cmb->addItem("选项3");
//方法二
QStringList QList;
QList.clear();
QList << tr("选项4") << tr("选项5") << tr("选项6") ;
cmb->addItems(QList);
cmb->setGeometry(20, 20, 70, 30);
cmb->setCurrentIndex(2);
/*实例化两个QRadioButton并选中第二个*/
qbtn1 = new QRadioButton("男",this);
qbtn1->setGeometry(120,30,50,20);
qbtn2 = new QRadioButton("女",this);
qbtn2->setGeometry(180, 30, 50, 20);
qbtn2->setChecked(true);
/*实例化两个Qlabel并命名*/
QLabel *lab1 = new QLabel("标签1",this);
lab1->setGeometry(20,100,50,50);
QLabel *lab2 = new QLabel("标签2", this);
lab2->setGeometry(120, 100, 50, 50);
/*实例化textedit*/
QTextEdit *tex = new QTextEdit("文本1",this);
tex->setGeometry(230,20,70,30);
/*实例化Qlabel,显示图片*/
QLabel *lab3 = new QLabel("标签3", this);
QPixmap pixmap("icon32/stop.png");
lab3->setPixmap(pixmap);
btn2->setIcon(pixmap);
lab3->setGeometry(310, 30, 160, 30);
lab3->setAlignment(Qt::AlignCenter);
//lab3->setText("启动");
/*实例化一个tableview*/
QTableView *tab = new QTableView(this);
QStandardItemModel *model = new QStandardItemModel;
model->setColumnCount(5);
tab->setModel(model);
model->setHeaderData(0, Qt::Horizontal, QString("File"));
model->setHeaderData(1, Qt::Horizontal, QString("Path"));
model->setHeaderData(2, Qt::Horizontal, QString("Size"));
model->setHeaderData(3, Qt::Horizontal, QString("Duration"));
model->setHeaderData(4, Qt::Horizontal, QString("value"));
tab->setShowGrid(true); //显示格子
tab->setColumnWidth(0, 80);
tab->setColumnWidth(1, 50);
tab->setColumnWidth(2, 80);
tab->setColumnWidth(3, 80);
tab->setColumnWidth(3, 80);
tab->setGeometry(20,110,400,200);
for (int i = 0; i < 3; i )
{
model->setItem(i, 0, new QStandardItem("2009441676"));
//设置字符颜色
model->item(i, 0)->setForeground(QBrush(QColor(255, 0, 0)));
//设置字符位置
model->item(i, 0)->setTextAlignment(Qt::AlignCenter);
//model->setItem(i, 1, new QStandardItem(QString::fromLocal8Bit("哈哈")));
model->setItem(i, 1, new QStandardItem(QString("哈哈")));
}
this->resize(440,330);
connect(btn2, SIGNAL(clicked()), this, SLOT(on_btn2_clicked()));
connect(btn1, SIGNAL(clicked()), this, SLOT(on_btn1_clicked()));
}
void QtGuiApplication7::on_btn2_clicked()
{
warning();
}
void QtGuiApplication7::on_btn1_clicked()
{
warning();
}
void QtGuiApplication7::warning()
{
if (qbtn2->isChecked()) //()不要忽略
QMessageBox::information(this, "提醒", "当前选择的性别是女");
else
QMessageBox::information(this, "提醒", "当前选择的性别是男");
}
