ang.py

if  player  in  list:
    if  player  ==  computer:
        print("平局")
    elif (player=="石头" and computer=="剪刀") or  (player=="剪刀" and  computer=="布") or  (player=="布"   and computer=="石头")
         print("恭喜,你赢了")
    else:
        print("很遗憾",你输了")  
else:  
    print("输入错误")