带有列表的Python装饰属性设置器

我为类对象定义了方法append（）和方法extend（）。它分别追加到成员myList并扩展成员myList。

global globalList  globalList = []class MyList():    def __init__(self):        self._myList = [1, 2, 3]    @property    def myList(self):        return self._myList + globalList    @myList.setter    def myList(self, val):        self._myList = val    def append(self, val):        self.myList = self.myList + [val]        return self.myList    def extend(self, val):        return self.myList.extend(val)mL1 = MyList()print("myList: ", mL1.myList)mL1.append(4)print("after appending a 4, myList: ", mL1.myList)mL1.myList.extend([5,6,"eight","IX"])print("after extend, myList: ", mL1.myList)

结果是

>>> ('myList: ', [1, 2, 3])('after appending a 4, myList: ', [1, 2, 3, 4])('after extend, myList: ', [1, 2, 3, 4, 5, 6, 'eight', 'IX'])