1.两个变量—— 一个存放电脑产生的随机数，一个存放用户输入的数

2.判断输赢（0—石头，1—剪刀，2—布）

  1.人赢（0—1，1—2，2—1）

  2.平局

  3.电脑赢

方法1：

import random

player = int(input("请出拳：0—石头，1—剪刀，2—布：")

computer = random.randint(0,2)

if (player == 0 and computer == 1) or (player == 1 and computer == 2) or (player == 2 and computer == 0):

  print("恭喜获胜")

elif player == computer:

  print("平局，再来一局")

else:

  print("电脑赢")

方法2：

import random

computer = randon.randint(0,2)

player = int(input("请出拳：0—石头，1—剪刀，2—布：")

if (computer == 0 and player == 1) or (computer == 1 and player == 2) or (computer == 2 and player == 0):

  print("电脑获胜")

elif player == computer:

  print("平局，再来一局")

else:

  print("恭喜获胜")

方法3：

import random

computer = randon.randint(0,2)

player = int(input("请出拳：0—石头，1—剪刀，2—布：")

if (player == 0 and computer == 1) or (player == 1 and computer == 2) or (player == 2 and computer == 0):

  print("恭喜获胜")

elif (computer == 0 and player == 1) or (computer == 1 and player == 2) or (computer == 2 and player == 0):

  print("电脑获胜")

else:

  print("平局")

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