# -*_ coding: UTF-8 -*-
#类定义
class people:
name=''
age=0
__weight=0
def __init__(self,n,a,w):
self.name = n
self.age = a
self.__weight = w
def speak(self):
print("%s说:我%d岁 "%(self.name,self.age))
#实例化类
p = people('哈哈',20,100)
p.speak()
输出结果:哈哈说:我20岁