How to use dt.Rows.Cast().Take(n)

参考文章：http://*.com/questions/2787458/how-to-select-top-n-rows-from-a-datatable-dataview-in-asp-net

DataTable dtPage = dt.Rows.Cast<System.Data.DataRow>().Skip(pageSize * (page - 1)).Take(pageSize).CopyToDataTable();