save project

diy1.py

@@ -6,12 +6,14 @@ import random
 b=["石头","剪刀","布"]
 c=random.choice(b)
 print("电脑出拳："+c)
-if a==c:
-    print("平局")
-elif (a=="石头" and c=="剪刀") or (a=="剪刀" and c=="布") or (a=="布" and c=="石头"):
-    print("你赢了")
-else:
-    print("你输了")
+if a in b:
+    
+    if a==c:
+        print("平局")
+    elif (a=="石头" and c=="剪刀") or (a=="剪刀" and c=="布") or (a=="布" and c=="石头"):
+        print("你赢了")
+    else:
+        print("你输了")
 else:
     print("输入错误")