.net如何向csv添加一列

using System;using System.Collections.Generic;using System.Drawing;using System.Globalization;using System.IO;using System.Linq;using System.Net;using System.Text;using System.Threading.Tasks;using System.Windows.Forms;using System.Xml;using ConsoleApplication1;using log4net;namespace test{    static class Program    {        static void Main()        {         List<string> arr=   File.ReadAllLines(@"D:\ektest.csv",Encoding.GetEncoding("Shift_JIS")).ToList();         List<string> newColumnData = new List<string>() { "345","123" };//添加列值  条数和arr的一样 不够位补null         arr[0] += ",\"リファラ\"";// 添加的列名         int index = 1;         //add new column value for each row.         arr.Skip(1).ToList().ForEach(line =>         {             //-1 for header             arr[index] += "," + newColumnData[index - 1];             index++;         });         //write the new content         File.WriteAllLines("D:\\test.csv", arr);        }    }}

转载于:https://www.cnblogs.com/c-x-a/p/6134023.html

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