7_20 day25 14min 静态属性

class Room:
    tag=1
    def __init__(self,name,owner,width,length,heigh):
        self.name=name
        self.owner=owner
        self.width=width
        self.length=length
        self.heigh=heigh

    @property
    def cal_area(self):
        # print('%s 住的 %s 总面积是%s' % (self.owner,self.name, self.width * self.length))
        return  self.width * self.length


r1=Room('厕所','alex',100,100,100000)
print(r1.cal_area) //100000

封装了，隐藏过程，可以像数据属性一样调用