save project

diy2.py

@@ -16,5 +16,5 @@ while True:
             print("用户密码错误，请重新输入")
     else :  
         print("您的账号被锁定，请来我司解锁")
-    exit
+        exit()
 print("欢迎来到贝尔编程!")
\ No newline at end of file