读写csv文件的简单C#类

一个非常简单的csv文件读写类。

View Code 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;
}

}
}