c#merge另外一个文件夹的内容

private void mergeFolder(string src, string des)

{

DirectoryInfo diSrc = new DirectoryInfo(src);

if(!diSrc.Exists ||(diSrc.GetDirectories().Length ==0 &&diSrc.GetFiles().Length ==0)||src ==des)

return;

DirectoryInfo diDes = new DirectoryInfo(des);

if(!diDes.Exists)

diDes.Create();

foreach (FileInfo fi in diSrc.GetFiles())

{

fi.CopyTo(Path.Combine(diDes.FullName,fi.Name),true);

}

foreach(DirectoryInfo di in diSrc.GetDirectories())

{

mergeFolder(di.FullName, Path.Combine(diDes.FullName, di.Name));

}

}