C#获取文本文件某行数据

 private void Form1_Load(object sender, EventArgs e)
        {
            int j=0;
          label1.Text=  FileRowText(@"c:\update.dat",2, ref j);
        }

        #region 获取文本某行数据
        ///
        /// 获取文本文件某行数据
        ///
        /// 文本文件路径
        /// 第几行
        /// 返回总行数
        ///
        private string FileRowText(string filePath,int i, ref int j)
        {
          
            StreamReader sr = File.OpenText(filePath);
            string str = "";
            string text = "";
            int num = 0;
            while ((str = sr.ReadLine()) != null)
            {
                num++;
                if (num == i)
                {
                    text = str;
                }
            }
            j = num;

            sr.Close();
            return text;
        }

        #endregion

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转载于:http://blog.itpub.net/23109131/viewspace-677923/