2. 玩家与电脑玩石头剪刀布游戏，电脑玩家都随机出拳。1---代表石头，2---代表剪刀，3---代表布。程序提示玩家出拳，并判断电脑赢还是玩家赢。

def caiquan():    
print('请选择你要出的拳头：' '1.石头    2.剪刀   3.布')    
player = int(input())    
computer = random.randint(1, 3)    
print('玩家出的是%d 电脑出的是%d' % (player, computer))    
# 判断谁胜利    
if (player == 1 and computer == 2) or (player == 2 and computer == 3) or (            player == 3 and computer == 1):        
print('玩家胜利')    
elif player == computer:        
print('打平')    
else:       
print('电脑胜利')

caiquan()