C#读取文件夹内文件名和路径并拷贝文件内容

DirectoryInfo folder = new DirectoryInfo(aimpath);
foreach (FileInfo file in folder.GetFiles())
{
string filename=file.Name;
string filefullname=file.FullName;
}

string aimpath;
try
{
if (aimpath[aimpath.Length - 1] != System.IO.Path.DirectorySeparatorChar)
{
aimpath+= System.IO.Path.DirectorySeparatorChar;
}
//判断目标目录是否存在，没有则创建
if (!System.IO.Directory.Exists(aimpath))
{
System.IO.Directory.CreateDirectory(aimpath);
}
string[] fileList = System.IO.Directory.GetFileSystemEntries(sourcepath); //文件夹里面的文件名
foreach (string file in fileList)
{
System.IO.File.Copy(file, aimpath + System.IO.Path.GetFileName(file), true);
}

// for (int i = 0; i < Videofullname.Count; i++)
//{
//    System.IO.File.Copy(Videofullname.ElementAt(i), aimPath + "\\" + Videoname.ElementAt(i), true);
// }
System.Diagnostics.Process.Start(aimPath);//拷贝完成打开目录文件夹
}
catch (System.Exception ex)
{
MessageBox.Show(ex.ToString());
}