save project

diy1.py

@@ -5,9 +5,12 @@ import random
 list=["剪刀","石头","布"]
 b=random.choice(list)
 print("计算机出拳:"+b)
-if a==b:
-    print("平局")
-elif (a=="石头"and b=="剪刀")or(a=="剪刀"and b=="布")or(a=="布"and b=="石头"):
-    print("你赢了")
+if a in list:
+    if a==b:
+        print("平局")
+    elif (a=="石头"and b=="剪刀")or(a=="剪刀"and b=="布")or(a=="布"and b=="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