save project

diy1.py

@@ -7,10 +7,10 @@ while True:
     if name == username and password == userpassword:
         print("登陆成功")
         break
-    if name != username:
+    elif name != username:
         print("用户名不存在，请重试")
         continue
-    if password != userpassword:
+    elif password != userpassword:
         print("密码错误，请重试")
 print("欢迎来到贝尔编程")
 # 如果用户输入的账号、密码正确，提示登陆成功
\ No newline at end of file