Qt---- 点击按钮调用另一个窗口Ui

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 #include "subdialog.h"
 
 SubDialog::SubDialog(QWidget *parent)
 : QDialog(parent)
 {
 _pUi = new Ui::SubDialogClass;
 _pUi->setupUi(this);
 connect(_pUi->nameButton,SIGNAL(clicked()),this,SLOT(on_clicjName()));
 }
 
 void SubDialog::on_clickName()
 {
 _pUi->nameLabel->setText(QStringLiteral("马超"));
 _pUi->nameEdit->setText(QString("ChaoMa"));
 }
 #include "maindialog.h"
 #include "subdialog.h"
 
 MainDialog::MainDialog(QWidget *parent)
 : QWidget(parent)
 {
 _pUi = new Ui::MainDialogClass;
 _pUi->setupUi(this);
 connect(_pUi->showButton,SIGNAL(clicked()),this,SLOT(on_clickShow()));
 //connect(_pUi->nameButton,SIGNAL(clicked()),this,SLOT(on_clickName()));
 }
 
 void MainDialog::on_clickShow()
 {
 SubDialog dialog;
 if(dialog.exec() != QDialog::Accepted)//如果是取消就返回
 {
 return;
 }
 }