自动将指定目录下面的文件转换为UTF-8

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using System; using System.Collections; using System.Collections.Generic; using System.IO; using System.Linq; using System.Text;   namespace save2Utf8 {     class Program     {         static void Main(string[] args)         {             string dir, filters;             //Console.WriteLine("Please input the directory:");             //dir = Console.ReadLine();             dir = @"D:\working\code\trunk\src\OAWeb\OAProject.Admin";             Console.WriteLine("要转换的路径为:" + dir);             Console.WriteLine("Please input the filter(such as *.c,*.cpp):");             filters = Console.ReadLine();             Console.WriteLine("The following files will be converted:");             List<string> destfiles = new List<string>();             foreach (string filter in filters.Split(','))             {                 foreach (var eachfileinfo in new DirectoryInfo(dir).GetFiles(filter, SearchOption.AllDirectories))                 {                     destfiles.Add(eachfileinfo.FullName);                     Console.WriteLine(eachfileinfo.FullName);                 }             }             Console.WriteLine("You Sure? (y or n)");             string ans = Console.ReadLine();             if (ans.Equals("y", StringComparison.OrdinalIgnoreCase))             {                 foreach (string destfile in destfiles)                 {                     File.WriteAllText(destfile, File.ReadAllText(destfile, Encoding.Default), Encoding.UTF8);                 }                 Console.WriteLine("finished.");             }             else             {                 Console.WriteLine("Nothing changed.");             }             Console.WriteLine("Press any key to exit.");             Console.ReadLine();         }     } }