剪刀石头布（python小游戏）

import random
while True:
    print("1=石头，2=剪刀，3=布")
    cp=random.randint(1,3)
    a=int(input("请输入猜拳数字："))
    print(cp)
    if (a==3 and cp==1) or (a==2 and cp==3) or (a==1 and cp==2):
        print("你赢了")
        print("     ")
        print("     ")
        print("     ")
    elif a==cp:
        print("平局")
        print("     ")
        print("     ")
        print("     ")
    else:
        print("你输了")
        print("     ")
        print("     ")
        print("     ")