collections模块

 https://www.cnblogs.com/Eva-J/articles/7228075.html

 http://www.cnblogs.com/Eva-J/articles/7291842.html

from collections import namedtuple
# Point=namedtuple('point',['x','y'])
# p1=Point(1,2)
# print(p1)
#
# Card=namedtuple("扑克牌",['suits','number'])
# c1=Card("黑桃",3)
# print(c1)
#
# Circle=namedtuple('圆',['x','y','r'])
# c11=Circle(1,2,5)
# print(c11)
# print(type(c11))
class 圆:
    def __init__(self,x,y,r):
        self.x=x
        self.y=y
        self.r=r
    # def __str__(self):
    #     return
c22=圆(1,2,3)
print(c22)