python - 获得变量

Question

我有一个愚蠢的问题:

有没有办法在另一个类中使用一个类的实例变量？我想继承可能是做到这一点的方法，但我不知道如何:(

例如:

class A():
    def __init__(self):
        self.var1 = 12
        self.var2 = C()

    def start(self):
        self.var1=11
        B()

class B():

    def doSomething(self):
        varXX = "  here I would like to have objet self.var2 from A()"         

class C():
    def makeUI(self):
        something

感谢帮助

Answer 1

class A():
    def __init__(self):
        self.var1 = 12
        self.var2 = C()

    def start(self):
        self.var1=11
        B(self)             # pass this instance into the initialisation of B

class B():
    def __init__(self, a):
        self.a = a          # save reference to the A() instance

    def doSomething(self):
        varXX = self.a.var2