网络协议的实现与应用实训报告(15)

FTP 服务器的安装和配置方法FTP 客户端的开发方法

源程序

using System;

using System.Collections.Generic; using http://www.77cn.com.cnponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text;

using System.Threading.Tasks; using System.IO; using http://www.77cn.com.cn;

using System.Windows.Forms;

namespace FTP_Client {

public partial class Form1 : Form {

private const int ftpport = 21; private string ftpUristring = null;

private NetworkCredential networkCredential; private string currentDir = "/"; public Form1() {

InitializeComponent();

IPAddress[] ips = Dns.GetHostAddresses(""); tbxServerIp.Text = ips[0].ToString(); tbxServerIp.SelectAll(); btnlogout.Enabled = false; lstbxFtpResources.Enabled = false; lstbxFtpState.Enabled = false; btnUpload.Enabled = false; btndownload.Enabled = false; btnDelete.Enabled = false; }

#region 键盘按下事件

private void tbxServerIp_KeyPress(object sender, KeyPressEventArgs e) {

// 输入用户名回车后，焦点直接转到密码文本框 if (e.KeyChar == (char)13) {

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