Qt第二十章：Qt Designer下拉框 QComboBox去除按钮图标

效果：去除QComboBox的右侧按钮图标

QComboBox:drop-down{
	border-style:none
}

效果：隐藏QComboBox边框
 

QComboBox{
	background-color:rgba(255,255,255,100%);
	border:none;
	font: 10pt "Microsoft YaHei UI";
}

效果：触发QComboBox展开
QcomboBox.showPopup()