qt中在.ui文档中有6个开关按下任意一个开关会on按下其他任何开关会off请用c++代码展示
时间: 2024-05-13 21:13:38 浏览: 7
假设6个开关的名称分别为`switch1`、`switch2`、`switch3`、`switch4`、`switch5`、`switch6`,在Qt中使用`QCheckBox`控件来表示开关。以下是示例代码:
```c++
#include <QApplication>
#include <QWidget>
#include <QCheckBox>
#include <QVBoxLayout>
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
QWidget *widget = new QWidget();
QVBoxLayout *layout = new QVBoxLayout();
widget->setLayout(layout);
QCheckBox *switch1 = new QCheckBox("Switch 1");
QCheckBox *switch2 = new QCheckBox("Switch 2");
QCheckBox *switch3 = new QCheckBox("Switch 3");
QCheckBox *switch4 = new QCheckBox("Switch 4");
QCheckBox *switch5 = new QCheckBox("Switch 5");
QCheckBox *switch6 = new QCheckBox("Switch 6");
layout->addWidget(switch1);
layout->addWidget(switch2);
layout->addWidget(switch3);
layout->addWidget(switch4);
layout->addWidget(switch5);
layout->addWidget(switch6);
QObject::connect(switch1, &QCheckBox::stateChanged, [=](int state){
if(state == Qt::Checked){
switch2->setChecked(false);
switch3->setChecked(false);
switch4->setChecked(false);
switch5->setChecked(false);
switch6->setChecked(false);
}
});
QObject::connect(switch2, &QCheckBox::stateChanged, [=](int state){
if(state == Qt::Checked){
switch1->setChecked(false);
} else {
switch3->setChecked(false);
switch4->setChecked(false);
switch5->setChecked(false);
switch6->setChecked(false);
}
});
QObject::connect(switch3, &QCheckBox::stateChanged, [=](int state){
if(state == Qt::Checked){
switch1->setChecked(false);
} else {
switch2->setChecked(false);
switch4->setChecked(false);
switch5->setChecked(false);
switch6->setChecked(false);
}
});
QObject::connect(switch4, &QCheckBox::stateChanged, [=](int state){
if(state == Qt::Checked){
switch1->setChecked(false);
} else {
switch2->setChecked(false);
switch3->setChecked(false);
switch5->setChecked(false);
switch6->setChecked(false);
}
});
QObject::connect(switch5, &QCheckBox::stateChanged, [=](int state){
if(state == Qt::Checked){
switch1->setChecked(false);
} else {
switch2->setChecked(false);
switch3->setChecked(false);
switch4->setChecked(false);
switch6->setChecked(false);
}
});
QObject::connect(switch6, &QCheckBox::stateChanged, [=](int state){
if(state == Qt::Checked){
switch1->setChecked(false);
} else {
switch2->setChecked(false);
switch3->setChecked(false);
switch4->setChecked(false);
switch5->setChecked(false);
}
});
widget->show();
return a.exec();
}
```
在上面的代码中,我们使用了Qt的信号和槽机制来处理开关的状态变化。每个开关都有一个与之对应的槽函数,当开关状态改变时,相应的槽函数会被调用。在每个槽函数中,我们根据开关的状态来控制其他开关的状态。例如,当开关1被打开时,我们将其他所有开关都关闭,以此实现只有一个开关可以被打开的效果。