C# FTP文件上传

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Net;
using System.Net.Sockets;
using System.IO;
using System.Threading;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        private bool control = false;
        private TcpClient client;
        private int i;
        private NetworkStream netStream;
        private FileStream fileStream = null;
        private Stream stream = null;
        public Form1（）
        {
            InitializeComponent（）;
        }

        private void button1_Click（object sender EventArgs e）
        {
            int 

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2015-05-06 20:48  FTP服务端和客户端代码\
     目录           0  2015-05-06 20:47  FTP服务端和客户端代码\客户端\
     目录           0  2015-05-06 20:47  FTP服务端和客户端代码\客户端\WindowsFormsApplication1\
     目录           0  2015-05-06 22:03  FTP服务端和客户端代码\客户端\WindowsFormsApplication1\WindowsFormsApplication1\
     文件        1041  2015-05-06 20:47  FTP服务端和客户端代码\客户端\WindowsFormsApplication1\WindowsFormsApplication1.sln
     文件       36864  2015-05-06 22:45  FTP服务端和客户端代码\客户端\WindowsFormsApplication1\WindowsFormsApplication1.v12.suo
     文件         187  2015-05-06 20:47  FTP服务端和客户端代码\客户端\WindowsFormsApplication1\WindowsFormsApplication1\App.config
     目录           0  2015-05-06 20:47  FTP服务端和客户端代码\客户端\WindowsFormsApplication1\WindowsFormsApplication1\bin\
     目录           0  2015-05-06 22:03  FTP服务端和客户端代码\客户端\WindowsFormsApplication1\WindowsFormsApplication1\bin\Debug\
     文件       13312  2015-05-06 22:03  FTP服务端和客户端代码\客户端\WindowsFormsApplication1\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.exe
     文件         187  2015-05-06 20:47  FTP服务端和客户端代码\客户端\WindowsFormsApplication1\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.exe.config
     文件       26112  2015-05-06 22:03  FTP服务端和客户端代码\客户端\WindowsFormsApplication1\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.pdb
     文件       24224  2015-05-06 20:47  FTP服务端和客户端代码\客户端\WindowsFormsApplication1\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.vshost.exe
     文件         187  2015-05-06 20:47  FTP服务端和客户端代码\客户端\WindowsFormsApplication1\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.vshost.exe.config
     文件         490  2013-06-18 20:28  FTP服务端和客户端代码\客户端\WindowsFormsApplication1\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.vshost.exe.manifest
     文件        4746  2015-05-06 22:03  FTP服务端和客户端代码\客户端\WindowsFormsApplication1\WindowsFormsApplication1\Form1.cs
     文件        8859  2015-05-06 22:02  FTP服务端和客户端代码\客户端\WindowsFormsApplication1\WindowsFormsApplication1\Form1.Designer.cs
     文件        6221  2015-05-06 22:02  FTP服务端和客户端代码\客户端\WindowsFormsApplication1\WindowsFormsApplication1\Form1.resx
     目录           0  2015-05-06 20:47  FTP服务端和客户端代码\客户端\WindowsFormsApplication1\WindowsFormsApplication1\obj\
     目录           0  2015-05-06 22:03  FTP服务端和客户端代码\客户端\WindowsFormsApplication1\WindowsFormsApplication1\obj\Debug\
     文件        7192  2015-05-06 20:49  FTP服务端和客户端代码\客户端\WindowsFormsApplication1\WindowsFormsApplication1\obj\Debug\DesignTimeResolveAssemblyReferencesInput.cache
     文件           0  2015-05-06 20:47  FTP服务端和客户端代码\客户端\WindowsFormsApplication1\WindowsFormsApplication1\obj\Debug\TemporaryGeneratedFile_036C0B5B-1481-4323-8D20-8F5ADCB23D92.cs
     文件           0  2015-05-06 20:47  FTP服务端和客户端代码\客户端\WindowsFormsApplication1\WindowsFormsApplication1\obj\Debug\TemporaryGeneratedFile_5937a670-0e60-4077-877b-f7221da3dda1.cs
     文件           0  2015-05-06 20:47  FTP服务端和客户端代码\客户端\WindowsFormsApplication1\WindowsFormsApplication1\obj\Debug\TemporaryGeneratedFile_E7A71F73-0F8D-4B9B-B56E-8E70B10BC5D3.cs
     目录           0  2015-05-06 20:47  FTP服务端和客户端代码\客户端\WindowsFormsApplication1\WindowsFormsApplication1\obj\Debug\TempPE\
     文件        1338  2015-05-06 22:03  FTP服务端和客户端代码\客户端\WindowsFormsApplication1\WindowsFormsApplication1\obj\Debug\WindowsFormsApplication1.csproj.FileListAbsolute.txt
     文件         977  2015-05-06 22:02  FTP服务端和客户端代码\客户端\WindowsFormsApplication1\WindowsFormsApplication1\obj\Debug\WindowsFormsApplication1.csproj.GenerateResource.Cache
     文件        2211  2015-05-06 22:02  FTP服务端和客户端代码\客户端\WindowsFormsApplication1\WindowsFormsApplication1\obj\Debug\WindowsFormsApplication1.csprojResolveAssemblyReference.cache
     文件       13312  2015-05-06 22:03  FTP服务端和客户端代码\客户端\WindowsFormsApplication1\WindowsFormsApplication1\obj\Debug\WindowsFormsApplication1.exe
     文件         180  2015-05-06 22:02  FTP服务端和客户端代码\客户端\WindowsFormsApplication1\WindowsFormsApplication1\obj\Debug\WindowsFormsApplication1.Form1.resources
     文件       26112  2015-05-06 22:03  FTP服务端和客户端代码\客户端\WindowsFormsApplication1\WindowsFormsApplication1\obj\Debug\WindowsFormsApplication1.pdb
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