pyqt QlineEdit内部增加按钮方法

 按钮放在QlineEdit内部，界面更紧凑，体现了按钮和文本框的强关联。

def addButton(self,lineEdit):btn = QtWidgets.QPushButton("")icon1 = QtGui.QIcon()icon1.addPixmap(QtGui.QPixmap(":/image/images/th.png"), QtGui.QIcon.Normal, QtGui.QIcon.Off)btn.setIcon(icon1)btn.setStyleSheet("""QPushButton {border: 0px solid #32CD32;}""")btn.setCursor(Qt.PointingHandCursor);widgetAction = QtWidgets.QWidgetAction(self);widgetAction.setDefaultWidget(btn);lineEdit.addAction(widgetAction,QtWidgets.QLineEdit.TrailingPosition);return btn

 实现的如下效果：