QPushButton的checked和pressed样式设置无效是因为优先级问题

设置QPushButton想要设置pressed状态的图标，但是尝试了很多次都没有效果，原来是按照优先级来的，位置越往下优先级越高，hover状态时在最下面，所以鼠标在按钮上时，hover优先级最高，所以无论pressed还是checked都无法显示正确的图标，所以要调整下顺序；

QPushButton
{
    border-image:url(:/analysisCenter/Resources/analysisCenter/trianglenormal.svg);
}
QPushButton:checked
{
    border-image:url(:/analysisCenter/Resources/analysisCenter/triangleselect.svg);
}
QPushButton:pressed
{
    border-image:url(:/analysisCenter/Resources/analysisCenter/triangleselect.svg);
}

QPushButton:hover
{
    border-image:url(:/analysisCenter/Resources/analysisCenter/trianglehover.svg);
}

调整顺序如下，将hover上移：

QPushButton
{
    border-image:url(:/analysisCenter/Resources/analysisCenter/trianglenormal.svg);
}
QPushButton:hover
{
    border-image:url(:/analysisCenter/Resources/analysisCenter/trianglehover.svg);
}
QPushButton:checked
{
    border-image:url(:/analysisCenter/Resources/analysisCenter/triangleselect.svg);
}
QPushButton:pressed
{
    border-image:url(:/analysisCenter/Resources/analysisCenter/triangleselect.svg);
}