asp.net复制粘贴程序
将原文件夹flode中的文件sourcetext.text
复制到目标文件夹descflode中，并且文件名变为desctext.text
程序该怎么写？

------解决方案--------------------
using System.IO;

File.Copy(sourceName, objectName, true);
------解决方案--------------------
using System;
using System.IO;

class Test
{
public static void Main()
{
string path = @ "c:\temp\MyTest.txt ";
string path2 = @ "c:\temp2\MyTest.txt ";
try
{
if (!File.Exists(path))
{
// This statement ensures that the file is created,
// but the handle is not kept.
using (FileStream fs = File.Create(path)) {}
}

// Ensure that the target does not exist.
if (File.Exists(path2))
File.Delete(path2);

// Move the file.
File.Move(path, path2);
Console.WriteLine( "{0} was moved to {1}. ", path, path2);

// See if the original exists now.
if (File.Exists(path))
{
Console.WriteLine( "The original file still exists, which is unexpected. ");
}
else
{
Console.WriteLine( "The original file no longer exists, which is expected. ");
}

}
catch (Exception e)
{
Console.WriteLine( "The process failed: {0} ", e.ToString());
}
}
}