修改Qt自带对话框的按钮文字

• QMessageBox

QMessageBox dialog(QMessageBox::Question, "询问", text);
dialog.setStandardButtons(QMessageBox::Yes | QMessageBox::No);
dialog.button(QMessageBox::Yes)->setText("确 定");
dialog.button(QMessageBox::No)->setText("取 消");
return dialog.exec();

• QInputDialog

QInputDialog dialog;
dialog.setOkButtonText("确定");
dialog.setCancelButtonText("取消");
return dialog.exec();

• QFileDialog

QFileDialog dialog;
dialog.setOption(QFileDialog::DontUseNativeDialog, true);
QLabel *lookinLabel = dialog.findChild<QLabel*>("lookInLabel");
lookinLabel->setText("文件目录：");