save project

diy1.py

@@ -7,6 +7,8 @@ while True:
     if name == username and password == userpassword:
         print("登陆成功")
         break
-    print("账号密码错误，请重试")
+    if name != username:
+        print("用户名不存在，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