save project

diy1.py

@@ -2,11 +2,14 @@ import random
 player=input("请出拳：石头/剪刀/布")# 玩家出拳
 print("玩家出拳:"+player)
 a=['石头','剪刀','布']
-p=random.choice(a)
-print('计算机出拳：'+p)
-if player==p:
-    print('平局')
-elif player=='石头'and p=='剪刀'or player=='剪刀'and p=='布'or player=='布'and p=='石头':
-    print('你赢了')
+if player in a:
+    p=random.choice(a)
+    print('计算机出拳：'+p)
+    if player==p:
+        print('平局')
+    elif player=='石头'and p=='剪刀'or player=='剪刀'and p=='布'or player=='布'and p=='石头':
+        print('你赢了')
+    else:
+        print('你输了')
 else:
-    print('你输了')
\ No newline at end of file
+    print('输入错误') 
\ No newline at end of file