笔记2.0

# 定义Student类
class Student:
    def __init__(self,name,xuehao,phone):
        self.name = name
        self.xuehao = xuehao
        self.phone = phone
        self.__password="123"
        
    def say_hello(self):
        print("你好，我是{n},密码是{p}".format(n=self.namep=self.__password))
        
    def print_phone(self):
        print("{h}的电话是{p}".format(h=self.name,p=self.phone))
        

# 实例化
zhangsan = Student("zhangsan","01","123456")

# 属性

zhangsan.xuehao

'01'

# 调用方法
zhangsan.say_hello()

你好，我是zhangsan

zhangsan.print_phone()

zhangsan的电话是123456