save project

diy1.py

@@ -7,9 +7,9 @@ while True:
    if name == username and password == userpassword:
       print("登录成功")
       break
-   if name != username:
+   elif name != username:
        print("用户名不存在，请重新输入！")
        continue
-   if password != userpassword:
+   else password != userpassword:
        print("密码输入有误，请重新输入！") 
 print("欢迎来到贝编程！")
\ No newline at end of file