split分割字符串

 OpenFileDialog ofd = new OpenFileDialog();
            ofd.Filter="文本文件|*.txt";
            if(ofd.ShowDialog()==false)
            {
                return;
            }
            //IEnumerable<string> lines =
            //    File.ReadLines(ofd.FileName,Encoding.Default);
            string[] lines =
                File.ReadLines(ofd.FileName, Encoding.Default).ToArray();
            //foreach (string line in lines)
            //{

            //}
            //跳过第一行表头
            for (int i = 1; i < lines.Count(); i++)
            {
                //string line = lines.ElementAt(i);
                string line = lines[i];
                //注意文件里是按照制表符分割的，不是字符串
                string[] strs = line.Split('\t');//vs里 '\t'为制表符
                string startTelNum = strs[0];
                string city = strs[1];
                city = city.Trim('"');//去掉两边的双引号："北京市"
                string telType = strs[2];
                telType = telType.Trim('"');
                SqlHelper.ExecuteNonQuery(@"Insert into T_TelNum(StartTelNum,TelType,TelArea) 
                    values(@StartTelNum,@TelType,@TelArea)",
                    new SqlParameter("@StartTelNum",startTelNum),
                new SqlParameter("@TelType", telType),
                new SqlParameter("@TelArea", city));

            }