Python 3：在一個類中的方法之間共享變量

Question

尋找如何讓一個方法/函數在一個類中可以訪問同一類中的另一個方法/函數所設置的變量，而不必在外部執行多餘的（和有問題的代碼） 。

這裏是行不通的例子，但可以告訴你什麼是我想要做的事：

#I just coppied this one to have an init method 
class TestClass(object): 

    def current(self, test): 
     """Just a method to get a value""" 
     print(test) 
     pass 

    def next_one(self): 
     """Trying to get a value from the 'current' method""" 
     new_val = self.current_player.test 
     print(new_val) 
     pass 

Answer 1

你在一個方法對其進行設置，然後看看它在另一個：

class TestClass(object): 

    def current(self, test): 
     """Just a method to get a value""" 
     self.test = test 
     print(test) 

    def next_one(self): 
     """Trying to get a value from the 'current' method""" 
     new_val = self.test 
     print(new_val) 

請注意，在嘗試檢索它之前，您需要設置self.test。否則，它會導致錯誤。我一般在__init__這麼做：

class TestClass(object): 

    def __init__(self): 
     self.test = None 

    def current(self, test): 
     """Just a method to get a value""" 
     self.test = test 
     print(test) 

    def next_one(self): 
     """Trying to get a value from the 'current' method""" 
     new_val = self.test 
     print(new_val) 

Answer 2

這就是你想要做的嗎？

#I just coppied this one to have an init method 
class TestClass(object): 

    def current(self, test): 
     """Just a method to get a value""" 
     print(test) 
     self.value = test 
     pass 

    def next_one(self): 
     """Trying to get a value from the 'current' method""" 
     new_val = self.value 
     print(new_val) 
     pass 

a = TestClass() 
b = TestClass() 
a.current(10) 
b.current(5) 
a.next_one() 
b.next_one()