Qt按钮暂停与播放

效果图： 

 核心代码（懒，类名默认）：

QtGuiApplication7::QtGuiApplication7(QWidget *parent)
	: QWidget(parent)
{
	ui.setupUi(this);
	flag_satrt = 1;
	ui.pushButton_2->setStyleSheet("border-image: url(:/QtGuiApplication7/6624c737b28d33a265e4904e43d616db.png);");
}

void QtGuiApplication7::on_pushButton_2_pressed()
{
	
	if (flag_satrt)
	{
		ui.pushButton_2->setStyleSheet("border-image: url(:/QtGuiApplication7/2.png);");
		flag_satrt = 0;
	}
	else
	{
		ui.pushButton_2->setStyleSheet("border-image: url(:/QtGuiApplication7/6624c737b28d33a265e4904e43d616db.png);");
		flag_satrt = 1;
	}
}