C#拷贝或复制文件夹的实例代码

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.IO;
/// <summary>
/// MyDirectory 的摘要说明
/// </summary>
public class MyDirectory
{
    /// <summary>
    /// 文件夹复制 www.jbxue.com
    /// </summary>
    /// <param name="sourceDirName">原始路径</param>
    /// <param name="destDirName">目标路径</param>
    /// <returns></returns>
    public static void Copy(string sourceDirName, string destDirName)
    {
        if (sourceDirName.Substring(sourceDirName.Length - 1) != "\\")
        {
            sourceDirName = sourceDirName + "\\";
        }
        if (destDirName.Substring(destDirName.Length - 1) != "\\")
        {
            destDirName = destDirName + "\\";
        }
        if (Directory.Exists(sourceDirName))
        {
            if(!Directory.Exists(destDirName))
            {
                Directory.CreateDirectory(destDirName);
            }
            foreach (string item in Directory.GetFiles(sourceDirName))
            {
                File.Copy(item,destDirName+Path.GetFileName(item),true);
            }
            foreach (string item in Directory.GetDirectories(sourceDirName))
            {
                Copy(item, destDirName + item.Substring(item.LastIndexOf("\\")+ 1));
            }
        }
    }
}