C# 复制文件和文件夹

因为有好多台服务器，每次都要手动进行备份，有点麻烦，而且容易出错，所以写了下面这个用程序来备份，比较简单，就是用C#复制文件和文件

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

namespace Copy
{
    class Program
    {
        static void Main(string[] args)
        {
            //eg  D:\publish
            //不用 ConfigurationManager而用下面这个是因为 FrameWork2.0
            string sourceDir = ConfigurationSettings.AppSettings["SourcePath"].ToString();
            //eg  D:\BackUp
            string targetDir = ConfigurationSettings.AppSettings["TargetPath"].ToString();
            Console.WriteLine("正在进行备份，请不要关闭窗口.............");
            DirectoryCopy(sourceDir, targetDir);
            Console.WriteLine("成功复制备份,按任意键关闭窗口............");
            Console.ReadKey();
        }

        static void DirectoryCopy(string sourceDir, string targetDir)
        {
            if (!Directory.Exists(sourceDir))
                return;
            if (!Directory.Exists(targetDir))
                return;

            string sourceFolderName = sourceDir.Replace(Directory.GetParent(sourceDir).ToString(), "").Replace(Path.DirectorySeparatorChar.ToString(), "");

            if (sourceDir == targetDir + sourceFolderName)
                return;

            //要复制到的路径
            string tagetPath=targetDir + Path.DirectorySeparatorChar.ToString() + sourceFolderName;
            if (Directory.Exists(tagetPath))
            {
                Directory.Delete(tagetPath, true);
            }

            Directory.CreateDirectory(tagetPath);

            //复制文件
            string[] files = Directory.GetFiles(sourceDir);
            for (int i = 0; i < files.Length; i++)
            {
                File.Copy(files[i], tagetPath+Path.DirectorySeparatorChar.ToString()+Path.GetFileName(files[i]));
            }
            //复制目录
            string[] dires = Directory.GetDirectories(sourceDir);
            for (int j = 0; j < dires.Length; j++)
            {
                DirectoryCopy(dires[j], tagetPath);
            }
        }
    }
}