save project

diy2.py

@@ -9,5 +9,6 @@ while True:
     if username != name:
         print("用户不存在，请重新输入!")
     if password != userpassword:
+        continue
         print("密码错误，请重新输入!")
 print("欢迎来到贝尔编程!")
\ No newline at end of file