继承类Python中init方法中的参数

Question

我是Python的初学者，我正在努力理解课程。在这种情况下，我不知道为什么不能从init方法中获取参数“权重”？

class Person:

    def __init__(self, weight):
    
        self.weight=weight

    def go_in(self, age,height):
       
        enter_to_disco= age*height*self.weight
        if enter_to_disco<10:
            print('enter to disco')
        else:
            print(f'do not enter to disco')
    

peter=Person.go_in(13,20,1)

它提出：

      7     def go_in(self, age,height):
      8 
----> 9         enter_to_disco= age*height*self.weight
     10         if enter_to_disco<10:
     11             print('enter to disco')

AttributeError: 'int' object has no attribute 'weight'

Answer 1

您只需创建对象，然后调用该方法：

class Person:

    def __init__(self, weight):
    
        self.weight=weight

    def go_in(self, age,height):
       
        enter_to_disco= age*height*self.weight
        if enter_to_disco<10:
            print('enter to disco')
        else:
            print(f'do not enter to disco')
    

  Person(90).go_in(20,1)