求一段html代码！下载文件到本地 就是指定一个链接。然后下载那个文件保存到电脑上

#region 下载文件

/**////

/// 从FTP服务器下载文件，使用与远程文件同名的文件名来保存文件
///

/// 远程文件名
/// 本地路径

public bool DownloadFile(string RemoteFileName, string LocalPath)
{
return DownloadFile(RemoteFileName, LocalPath, RemoteFileName);
}
/**////

/// 从FTP服务器下载文件，指定本地路径和本地文件名
///

/// 远程文件名
/// 本地路径
/// 保存文件的本地路径,后面带有"\"
/// 保存本地的文件名
public bool DownloadFile(string RemoteFileName, string LocalPath, string LocalFileName)
{
byte[] bt = null;
try
{
if (!IsValidFileChars(RemoteFileName) || !IsValidFileChars(LocalFileName) || !IsValidPathChars(LocalPath))
{
throw new Exception("非法文件名或目录名!");
}
if (!Directory.Exists(LocalPath))
{
throw new Exception("本地文件路径不存在!");
}

string LocalFullPath = Path.Combine(LocalPath, LocalFileName);
if (File.Exists(LocalFullPath))
{
throw new Exception("当前路径下已经存在同名文件！");
}
bt = DownloadFile(RemoteFileName);
if (bt != null)
{
FileStream stream = new FileStream(LocalFullPath, FileMode.Create);
stream.Write(bt, 0, bt.Length);
stream.Flush();
stream.Close();
return true;
}
else
{
return false;
}
}
catch (Exception ep)
{
ErrorMsg = ep.ToString();
throw ep;
}
}

/**////

/// 从FTP服务器下载文件，返回文件二进制数据
///

/// 远程文件名
public byte[] DownloadFile(string RemoteFileName)
{
try
{
if (!IsValidFileChars(RemoteFileName))
{
throw new Exception("非法文件名或目录名!");
}
Response = Open(new Uri(this.Uri.ToString() + RemoteFileName), WebRequestMethods.Ftp.DownloadFile);
Stream Reader = Response.GetResponseStream();

MemoryStream mem = new MemoryStream(1024 * 500);
byte[] buffer = new byte[1024];
int bytesRead = 0;
int TotalByteRead = 0;
while (true)
{
bytesRead = Reader.Read(buffer, 0, buffer.Length);
TotalByteRead += bytesRead;
if (bytesRead == 0)
break;
mem.Write(buffer, 0, bytesRead);
}
if (mem.Length > 0)
{
return mem.ToArray();
}
else
{
return null;
}
}
catch (Exception ep)
{
ErrorMsg = ep.ToString();
throw ep;
}
}
#endregion

文件名