类变量更新

Question

我建立了一个类来处理很多不同的函数，它们采用通用输入。但是，我刚碰到需要更改通过self反馈的变量之一的情况。我该怎么做呢？这是一个例子：

class Test: 
    def __init__(self, test_variable): 
     self.test_var = test_variable 

    @property 
    def some_function(self): 
     if self.test_var < 0: 
      self.test_var = 'New Output' #this is the line that I can't get 
              #get to work and I was hoping to update it here 
              #so I could use it in later functions 
     return self.test_var 

谢谢！

Answer 1

您应该删除@property属性。然后，您可以通过设置x.test_var = 5来设置它。例如，

class Test: 
    def __init__(self, test_variable): 
     self.test_var = test_variable 

    def some_function(self): 
     if self.test_var < 0: 
      self.test_var = 'New Output' #this is the line that I can't get 
              #get to work and I was hoping to update it here 
              #so I could use it in later functions 
     return self.test_var 

x = Test(-1) 

print(x.some_function()) 
x.test_var = 5 
print(x.some_function()) 

回报

New Output 
5