static void Main(string[] args)
        {
            DataTable dt = new DataTable();
            dt.Columns.Add("id", typeof(int));
            dt.Columns.Add("title", typeof(string));

            dt.Columns["id"].AutoIncrement = true;
            for (int i = 0; i < 100; ++i)
            {
                DataRow newRow = dt.NewRow();
                newRow["title"] = DateTime.Now.Ticks.ToString();
                dt.Rows.Add(newRow);
            }

            // 查找符合條件數據
            DataRow[] dataRows = dt.Select("id<'2' or title='11'");
            string str = "";
            for (int i = 0; i < dataRows.Length; ++i)
            {
                str += dataRows[i]["id"].ToString() + ";";
            }
        }