//fileFullName为文件名(既包含文件路径也包含扩展名) System.IO.FileStream pFile = new System.IO.FileStream(fileFullName, FileMode.Open); StreamReader sr = new StreamReader(pFile, Encoding.Default); string strLine; strLine = sr.ReadLine(); string[] strArray; char[] charArray = new char[] { ',' }; //返回strLine中的子字符串(由','分隔)的 String 数组 strArray = strLine.Split(charArray); //接着读取下一行 strLine = sr.ReadLine(); //…… sr.Close();