复制文件夹

前阶段遇见复制文件夹问题，一时想到要用递归，总结如下：

static void Main(string[] args)
        {
            CopyDirectroy(@"c:\Dell", @"d:\Dell");
        }
        static void CopyDirectroy(string sourePath, string targetPath)
        {
            DirectoryInfo sourceDir = new DirectoryInfo(sourePath);//
            DirectoryInfo targetDir = new DirectoryInfo(targetPath);//
            if (!sourceDir.Exists)
            {
                return;
            }
            if (!targetDir.Exists)
            {
                Directory.CreateDirectory(targetPath);//
            }
            FileInfo[] files = sourceDir.GetFiles();//
            int filesLength = files.Length;//
            for (int i = 0; i < filesLength; i++)//
            {
                File.Copy(files[i].FullName, targetPath + "\\" + files[i].Name, true);//
            }
            DirectoryInfo[] dirs = sourceDir.GetDirectories();//
            for (int i = 0; i < dirs.Length; i++)
            {
                CopyDirectroy(dirs[i].FullName, targetPath + "\\" + dirs[i].Name);//
            }
        }