python pyqt6 QComboBox 圆角边框

圆角边框周围显示黑色直角

QComboBox  新增 如下设定即可

xxx_source.view().window().setWindowFlag(Qt.WindowType.NoDropShadowWindowHint)
xxx_source.view().window().setWindowFlag(Qt.WindowType.FramelessWindowHint)
xxx_source.view().window().setAttribute(Qt.WidgetAttribute.WA_TranslucentBackground)

　　

 附上 Reference Guide — PyQt Documentation v6.6.0 (riverbankcomputing.com) 

 Qt Style Sheets Examples | Qt Widgets 5.15.16

xxx_source = QComboBox(self)
...
xxx_source.view().window().setWindowFlag(Qt.WindowType.NoDropShadowWindowHint)
xxx_source.view().window().setWindowFlag(Qt.WindowType.FramelessWindowHint)
xxx_source.view().window().setAttribute(Qt.WidgetAttribute.WA_TranslucentBackground)

xxx_source.setStyleSheet("QComboBox {font-family:SimHei;font-weight:bold;background-color: transparent; font-size:16px;color: white; border-radius: 10px;border-color: lightgray; border-style: solid; border-width:0px;} \
                                QComboBox:hover {border: 1px solid #dbdbdb;border-radius:5px;}\
                                QComboBox::drop-down {width:0px;background-color: transparent; }\
                                QComboBox QAbstractItemView {\
                                border-style:solid;\
                                border-radius: 5px;\
                                border: 1px solid #dbdbdb;\
                                background: #181818;\
                                color: white;\
                                }")