QCheckBox::indicator:unchecked{image:url(:/suoniao.png)}
QCheckBox::indicator:unchecked:hover{image:url(:/suoniao.png)}
QCheckBox::indicator:checked{}
QCheckBox::indicator:checked:hover{}
QCheckBox::indicator:checked:pressed{}
QCheckBox::indicator:indeterminate:hover{}
QCheckBox::indicator:indeterminate:pressed{}
QCheckBox{spacing:5px}调整方框和文字之间的间距
QCheckBox::indicator{width:10px;height:10px}//方框大小