Policy 重试

 var response = Policy.HandleResult<IRestResponse>(s => s.StatusCode != System.Net.HttpStatusCode.OK)
                    .Retry(2, (result, count) =>
                    {
                        LogHelper.Debug($"{tag} Response:{result.Result.Content}   【tiem：第{count}次 StatusCode：{result.Result.StatusCode}】", TaskInfo.TenantId);
                    })
                    .Execute(() =>
                    {
                        return client.Execute(request);
                    });