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diy1.py

 # 玩家出拳
 import random
-player = input("玩家出拳:")
-print("玩家出的是:",player)
-list1 = ['石头','剪刀','布']
-computer = random.choice(list1)
-print("计算机的是:",computer)
-if computer == player:
-    print('平局!')
-elif computer == "剪刀" and player == "石头" or computer == "石头" \
-    and player == "布" or computer == "布" and player == '剪刀':
-    print('玩家赢了')
-else:
-    print("计算机赢了!")
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+while True:
+    player = input("玩家出拳:")
+    print("玩家出的是:",player)
+    list1 = ['石头','剪刀','布']
+    computer = random.choice(list1)
+    print("计算机的是:",computer)
+    if player in list1:
+        if computer == player:
+            print('平局!')
+        elif computer == "剪刀" and player == "石头" or computer == "石头" \
+            and player == "布" or computer == "布" and player == '剪刀':
+            print('玩家赢了')
+        else:
+            print("计算机赢了!")
+    else:
+        print("输入错误,请重新输入:")
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