一个读写csv文件的C#类

using System; using System.Collections.Generic; using System.IO; using System.Text; namespace CSVDemo { /// <summary> /// CSVUtil is a helper class handling csv files. /// </summary> public class CSVUtil { private CSVUtil() { } //write a new file, existed file will be overwritten public static void WriteCSV(string filePathName,List<String[]>ls) { WriteCSV(filePathName,false,ls); } //write a file, existed file will be overwritten if append = false public static void WriteCSV(string filePathName,bool append, List<String[]> ls) { StreamWriter fileWriter=new StreamWriter(filePathName,append,Encoding.Default); foreach(String[] strArr in ls) { fileWriter.WriteLine(String.Join (“,",strArr) ); } fileWriter.Flush(); fileWriter.Close(); } public static List<String[]> ReadCSV(string filePathName) { List<String[]> ls = new List<String[]>(); StreamReader fileReader=new StreamReader(filePathName); string strLine=""; while (strLine != null) { strLine = fileReader.ReadLine(); if (strLine != null && strLine.Length>0) { ls.Add(strLine.Split(',')); //Debug.WriteLine(strLine); } } fileReader.Close(); return ls; } } }

另外：http://www.codeproject.com/KB/database/CsvReader.aspx这里有一个比较好的参考。