C#替换文件夹里面文件的字符串

搜了搜baidu,google,没有多少这个,所以自己折腾了一个。有不妥，高手请指教。欢迎转载卡卡

 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;

namespace ReplaceFileDemo
{
class Program
{
static void Main(string[] args)
{

DirectoryInfo theFolder = new DirectoryInfo(@"f://files");
RecircleFiles(theFolder);
Console.ReadKey();
}
public static void RecircleFiles(DirectoryInfo di)
{
foreach (DirectoryInfo NextFolder in di.GetDirectories())
{
Console.WriteLine(NextFolder.Name);
}
foreach (FileInfo NextFile in di.GetFiles())
{
Console.WriteLine(NextFile.FullName);
using (StreamReader sr=new StreamReader(NextFile.FullName,System.Text.Encoding.Default))
{
string line;
while ((line = sr.ReadLine()) != null)
{
line = line.Replace("123","456");
Console.WriteLine(line);
}
}
}
foreach (DirectoryInfo NextFolder in di.GetDirectories())
{
RecircleFiles(NextFolder);
}
}

}
}