C#.NET实现文件夹的复制 

2008-07-03
      .NET只提供了文件的Copy方法,但却没有提供文件夹的Copy方法,经过一天的努力,终于搞定.现贴出主要代码供大家参考,欢迎大家提出建议. 代码如下:         public int DirectoryName(string DirectoryPath)//获取文件夹名，截取“\”
        {
        int j = 0;     char[] c = DirectoryPath.ToCharArray();
         for (int i = c.Length - 1; i >= 0; i--)//从后面截取
         {
        j = i;
        if (c[i] == '\\')
         {
        break;//遇"\"调处,并返回"\"的位置
         }
        }
        return j+1;
        }

 

        public void CopyDirectory(string DirectoryPath,string DirAddress)//复制文件夹，
         {
            #region//递归 

            //获取文件名方法一：用上函数
            //string s = DirectoryPath.Substring(DirectoryName(DirectoryPath));//获取文件夹名

            //获取文件名方法二：用string类的LastIndexOf()和Substring()函数

               int index = DirectoryPath.LastIndexOf('\\');
             string s=DirectoryPath.Substring(index+1);

             if (Directory.Exists(DirAddress + "\\" + s))
            {
                Directory.Delete(DirAddress + "\\" + s,true);//若文件夹存在，不管目录是否为空，删除
                 Directory.CreateDirectory(DirAddress + "\\" + s);//删除后，重新创建文件夹
            }
            else
             {
                 Directory.CreateDirectory(DirAddress + "\\" + s);//文件夹不存在，创建
            }
            DirectoryInfo DirectoryArray = new DirectoryInfo(DirectoryPath);
            FileInfo[] Files = DirectoryArray.GetFiles();//获取该文件夹下的文件列表
            DirectoryInfo[] Directorys = DirectoryArray.GetDirectories();//获取该文件夹下的文件夹列表
            foreach (FileInfo inf in Files)//逐个复制文件
            {
                File.Copy(DirectoryPath + "\\" + inf.Name, DirAddress + "\\" + s + "\\" + inf.Name);
            }
            foreach (DirectoryInfo Dir in Directorys)//逐个获取文件夹名称，并递归调用方法本身
            {
                CopyDirectory(DirectoryPath + "\\" + Dir.Name, DirAddress + "\\" + s);
            }
            #endregion
        }

 

本文来自CSDN博客，转载自：http://blog.csdn.net/flysun0311/archive/2008/08/19/2797364.aspx