Qt改變QScrollBar的兩個按鈕以及滑塊的外形

setStyleSheet(
            "QScrollBar{ background: #F0F0F0; width:30px ;margin-top:36px;margin-bottom:36px }"
            "QScrollBar::handle:vertical{ background: #EAEAED; min-height: 80px ;width:30px;border-image:url(handle.png); }"
            "QScrollBar::sub-line:vertical{height:36px;subcontrol-position:top;subcontrol-origin:margin; border-image:url(sub.png);}"
            "QScrollBar::add-line:vertical{height:36px;subcontrol-position:bottom;subcontrol-origin:margin;border-image:url(add.png);}"
            );

參考博客:

1.QT 中自定義QScrollBar 風格（寬度、滑塊大小等） - iamplane的博客 - CSDN博客 https://blog.csdn.net/iamplane/article/details/78216364

 

2.QT修改默認的滾動條樣式 - 皮皮豬的專欄 - CSDN博客 https://blog.csdn.net/hp_1990/article/details/17758649