.NETCore WebApi开发框架返回DataSet/DataTable数据类型

        [HttpPost]
        public async Task<string> QueryReportData(req_Employee input)
        {
            DataSet ds = await _business.QueryReportData(input);
            var xml = CSFrameworkV6.Core.Common.DataTableHelper.ToXml(ds);
            return xml;
        }

        public DataSet QueryReportData(req_Employee input)
        {
            var xml = APIProvider.Sign.RequestObjectByPost<string>(APIList.dt_Employee_QueryReportData, input);
            return CSFrameworkV6.Core.Common.DataTableHelper.FromXml(xml);
        }