问C#.Net RestSharp客户端传递auth令牌

EN

 class RestUtils
    {
        private static readonly RestClient _restClient = new RestClient();

        public static void SetBaseURL(String host)
        {
            _restClient.BaseUrl = new Uri(host);
        }

        public static string GetResponse(String endpoint, String token)
        {
            var request = new RestRequest(endpoint, Method.GET);
            request.AddHeader("Accept", "application/json");
            request.AddHeader("Authorization", token);
            IRestResponse response = _restClient.Execute(request);
            return response.Content;
        }

        public static string GetToken(String endpoint)
        {
            var request = new RestRequest(endpoint, Method.GET);
            request.AddHeader("Accept", "application/json");
            IRestResponse response = _restClient.Execute(request);
            return response.Content;
        }
    }

        //Specify the Base URI of your Token Specific API
        RestUtils.SetBaseURL("https://login.microsoftonline.com/");
        //Specify the End Point of your Token Specific API
        String token = RestUtils.GetToken("/oauth2/token");

        //Specify the Base URI of your actual Test API
        RestUtils.SetBaseURL("XXXXXXX");
        String response = RestUtils.GetResponse(token);