創建類的實例python＆__init__

Question

我想要一個具有一些類變量的類，並具有對這些變量執行內容的函數 - 但我希望函數能夠自動調用。有沒有更好的方法來做到這一點？我應該使用init嗎？對不起，如果這是一個不好的問題 - 我對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 

那麼有沒有更好的方法來做到這一點？並導致我的所有對象具有相同的值？謝謝！

Answer 1

foo1和foo2的是類變量，它們被所有對象共享，

類應該是這樣的，如果你想foo1，foo2要爲每個對象不同：

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")