一个有趣python self的题目

#-*- encoding:utf-8 -*-

 

class Box:

    count=0

    def __init__(self,length,width,height):

        self.length = length

        self.width = width

        self.height = height

        Box.count = Box.count + 1

         

 

    def output(self):

        self.__v = self.length*self.width*self.height

        print "length:" + str(self.length)

        print "width:" + str(self.width)

        print "height:" + str(self.height)

        print "V:" + str(self.__v)

        print "run times:" + str(Box.count)

 

b1 = Box(1,2,3)

b1.output()

b2 = Box(2,3,4)

b2.output()

b3 = Box(3,4,5)

b3.output()

b4 = Box(4,5,6)

b4.output()

b5 = Box(6,7,8)

b5.output()