delphi IdHTTP.Request.UserAgent 用法

var
 get_url, Response: string;begin
 Memo1.Lines.Clear;
 IdHTTP.Request.Username := 'admin'; // User
 IdHTTP.Request.Password := 'webrelay'; // Password
 IdHTTP.Request.BasicAuthentication := true; //Auth. BASIC

 // ADD THIS (use whatever UA you want, as long as it is real)...
 IdHTTP.Request.UserAgent := 'Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:92.0) Gecko/20100101 Firefox/92.0';  try
   get_url := 'http://144.129.139.172/state.xml';
   Response := IdHTTP.Get(get_url);
   Memo1.Lines.Add(Response);  except
   on E: EIdHTTPProtocolException do
     Memo2.Lines.Add(E.ErrorMessage);  end;end;