python_class

@property 把对象封装为属性，@classmethod 类对象 

class School:
    school_id = 123456
    def __init__(self, name, addr, type):
        self.name = name
        self.addr = addr
        self.type = type

    @property
    def instance_info(self):
        print("学校名称：%s" % self.name)
        print("学校地址：%s" % self.addr)
        print("学校类型：%s" % self.type)
    @classmethod
    def school_info(cls):
        print("学校标识号：%s"%cls.school_id )

my_sch = School("利辛中学", "锦绣路", "公办")

my_sch.instance_info
School.school_info()