#!/usr/bin/python3.8

class Person:
              num=0                      #
              def _ _init_ _(self,str,n,w)     #캯
                  self.name = str            #幫
                  self.age=n	#幫
                  self._ _weight=w          #幫˽_ _weight
                  Person.num+=1           #޸

P1=Person(ëʦ,42,120)
P1=Person(ʦ,39,80)
print (P1.name) 
print (P1._Person_ _weight) 
print (P1. _ _weight)              #AttributeError
ϳнΪ
ëʦ
120
AttributeErrorPersonobject has no attribute _ _weight