[提问]点击按钮，clicked（）无反应 [复制链接]

书中有一段 说显示扩展对话框的实现，是：在单击more按钮时调用QPushButton中的setText（）函数完成。

我写了：
        QObject::connect(moreButton, SIGNAL(clicked()), this, SLOT(isClicked()));

        QObject::connect(moreButton, SIGNAL(toggled(bool)), SecondaryGroupBox, SLOT(setVisible(bool)));
        QObject::connect(moreButton, SIGNAL(toggled(bool)), tertiaryGroupBox, SLOT(setVisible(bool)));

……

void CSortDialog::isClicked()
{
        if (moreButton->text() == "&More>>>")
        {
                moreButton->setText("&More<<<");
        }
        else
        {
                moreButton->setText("&More>>>");
        }
}

点击按钮后，为何没有反应？？？？？