save project

diy1.py

 import random
 import random
 player=input("请出拳(剪刀/石头/布):")
 player=input("请出拳(剪刀/石头/布):")
-print("玩家:"+player)
 l=["剪刀","石头","布"]
 l=["剪刀","石头","布"]
-letter=random.choice(l)
-print("电脑:"+letter)
-if player==letter:
+if player in l:
+    print("输入正确")
+    print("玩家:"+player)
+    letter=random.choice(l)
+    print("电脑:"+letter)
+    if player==letter:
         print("平局")
         print("平局")
-elif (player=="剪刀" and letter=="布") or (player=="布" and letter=="石头") or (player=="石头" and letter=="剪刀"):
+    elif (player=="剪刀" and letter=="布") or (player=="布" and letter=="石头") or (player=="石头" and letter=="剪刀"):
         print("玩家胜利")
         print("玩家胜利")
-else:
+    else:
         print("失败")
         print("失败")
+else:
+    print("输入错误")