save project

diy1.py

 import random
 import random
+num=0
+while num<4:
 a=input("我出拳是: ")
 a=input("我出拳是: ")
 gn=["石头","剪刀","布"]
 gn=["石头","剪刀","布"]
 print("出的拳是:"+a)
 print("出的拳是:"+a)
 b=random.choice(gn)
 b=random.choice(gn)
 print("计算机出拳: "+b)
 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("我赢了")
+if a in gn:
+    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("我赢了")
+    else:
+        print("计算机赢了")
 else:
 else:
-    print("计算机赢了")
+    print("输入错误")
+
+