auto save

diy.py

@@ -11,10 +11,13 @@ while True:
             break
         if name!=username:
             print("用户名错误")
+            print("您还有"+str(i)+"次机会")
         if password!=username:
             print("密码错误")
+            print("您还有"+str(i)+"次机会") 
     else:
        print("已锁定")
+       exit()
 print("欢迎")