using?System;
using?System.Collections.Generic;
using?System.Text;
using?System.IO;
using?System.Net;
using?System.Text.Regularexpressions;

namespace?libDbHelper
{
????///?
??
????///?FTP幫助類??
????///?
??
????public?class?FTPHelper
????{
????????#region?字段
????????string?ftpURI;
????????string?ftpUserID;
????????string?ftpServerIP;
????????string?ftpPassword;
????????string?ftpRemotePath;
????????#endregion

????????#region?連接FTP服務(wù)器
????????///?
????
????????///?連接FTP服務(wù)器??
????????///?
????
????????///?FTP連接地址????
????????///?指定FTP連接成功后的當前目錄?如果不指定即默認為根目錄????
????????///?用戶名????
????????///?密碼????
????????public?FTPHelper（string?FtpServerIP?string?FtpRemotePath?string?FtpUserID?string?FtpPassword）
????????{
????????????ftpServerIP?=?FtpServerIP;
????????????ftpRemotePath?=?FtpRemotePath;
????????????ftpUserID?=?FtpUserID;
????????????ftpPassword?=?FtpPassword;
????????????ftpURI?=?“ftp://“?+?ftpServerIP?+?“/“?+?ftpRemotePath?+?“/“;
????????}
????????#endregion

????????#region?上傳
????????///?
????
????????///?上傳????
????????///?
?????
????????public?bool?Upload（string?filename）
????????{
????????????try
????????????{
????????????????FileInfo?fileInf?=?new?FileInfo（filename）;
????????????????FtpWebRequest?reqFTP;
????????????????reqFTP?=?（FtpWebRequest）FtpWebRequest.Create（new?Uri（ftpURI?+?fileInf.Name））;
????????????????reqFTP.Credentials?=?new?NetworkCredential（ftpUserID?ftpPassword）;
????????????????reqFTP.Method?=?WebRequestMethods.Ftp.UploadFile;
????????????????reqFTP.KeepAlive?=?false;
????????????????reqFTP.UseBinary?=?true;
????????????????reqFTP.ContentLength?=?fileInf.Length;
????????????????int?buffLength?=?2048;
????????????????byte[]?buff?=?new?byte[buffLength];
????????????????int?contentLen;
????????????????FileStream?fs?=?fileInf.OpenRead（）;
????????????????try
????????????????{
????????????????????Stream?strm?=?reqFTP.GetRequestStream（）;
????????????????????contentLen?=?fs.Read（buff?0?buffLength）;
????????????????????while?（contentLen?!=?0）
????????????????????{
????????????????????????strm.Write（buff?0?contentLen）;
????????????????????????contentLen?=?fs.Read（buff?0?buffLength）;
????????????????????}
????????????????????strm.Close（）;
????????????????????fs.Close（）;
????????????????}
????????????????catch?（Exception?ex）
????????????????{
????????????????????throw?new?Exception（ex.Message）;
????????????????}
????????????????return?true;
????????????}
????????????catch
????????????{
????????????????return?false;
????????????}
????????}
????????#endregion

????????#region?下載
????????///?
????
????????///?下載????
????????///?
?????
????????public?bool?Download（string?filePath?string?fileName）
????????{
????????????try
????????????{