您如何能够在子类的方法中从父类访问变量?
例如,像这样:
{{1}}
感谢。
答案 0 :(得分:4)
首先:要实际初始化您需要确保Parent.__init__
实际运行所需的变量,例如不要覆盖__init__
,然后只需将其作为self.y
访问:
class Parent:
def __init__(self, x, y):
self.x = x
self.y = y
class Child(Parent):
def firstMethod(self):
print(self.y)
另一种可能性是致电父母__init__
,但仍然可以通过self.y
访问它:
class Parent:
def __init__(self, x, y):
self.x = x
self.y = y
class Child(Parent):
def __init__(self, x, y):
super().__init__(x, y)
# additional processing
def firstMethod(self):
print(self.y)
答案 1 :(得分:-1)
class Parent:
def __init__(self, x, y):
self.x = x
self.y = y
class Child(Parent):
def __init__(self, x, y):
# initialize Parent with your needed data
Parent.__init__(self, x,y)
# or call mata class
# super().__init__(x,y)
def firstMethod(self):
print(self.y) # or something?
c = Child(20,20)
c.firstMethod()
# 20