创建类的实例python＆__init__

Question

我想要一个具有一些类变量的类，并具有对这些变量执行内容的函数 - 但我希望函数能够自动调用。有没有更好的方法来做到这一点？我应该使用init吗？对不起，如果这是一个不好的问题 - 我对Python很新。

# used in second part of my question 
counter = 0  

class myClass: 
    foo1 = [] 
    foo2 = [] 

    def bar1(self, counter): 
     self.foo1.append(counter) 
    def bar2(self): 
     self.foo2.append("B") 

def start(): 
    # create an instance of the class 
    obj = myClass() 
    # I want the class methods to be called automatically... 
    obj.bar1() 
    obj.bar2() 

# now what I am trying to do here is create many instances of my class, the problem is 
# not that the instances are not created, but all instances have the same values in 
# foo1 (the counter in this case should be getting incremented and then added 
while(counter < 5): 
    start() 
    counter += 1 

那么有没有更好的方法来做到这一点？并导致我的所有对象具有相同的值？谢谢！

Answer 1

foo1和foo2的是类变量，它们被所有对象共享，

类应该是这样的，如果你想foo1，foo2要为每个对象不同：

class myClass: 
    # __init__ function will initialize `foo1 & foo2` for every object 
    def __init__(self): 
     self.foo1 = [] 
     self.foo2 = [] 

    def bar1(self, counter): 
     self.foo1.append(counter) 
    def bar2(self): 
     self.foo2.append("B")