python面向对象入门

# -*_ 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