Python list clear

版权声明：原创文章 by LynnChan https://blog.csdn.net/ccchen706/article/details/71733966

使用for循环删除list 注意,如果在循环中代码中删除了当前选择的项目,则由于指针前移,造成间隔删除.

代码如下:

 def delAllEdit(self):
        print  'processlist',self._processList
        for edit in self._processList:
            self.deleteEditWidget(edit)
        print 'processlist', self._processList


    def deleteEditWidget(self,widget):
        if widget in self._processList:
            self._processList.remove(widget)
            widget.close()

调用delAllEdit打印信息如下:
processlist [<FATERUI.editwidget.EditWidget object at 0x7f8ecc0cb770>, <FATERUI.editwidget.EditWidget object at 0x7f8ecc0e0348>]
processlist [<FATERUI.editwidget.EditWidget object at 0x7f8ecc0e0348>]

使用while倒序删除即可:

        while len(self._processList)>0:
            edit=self._processList[-1]
            self.deleteEditWidget(edit)