save project

diy2.py

@@ -10,5 +10,5 @@ while True:
         print("密码错误!请重新输入")
     if name == username and password == userpassword:
         print("登入成功！")
-        break
+        exit()
 print("欢迎来到贝尔编程!")
\ No newline at end of file