1、添加2个Label、2个textBox、1个listBox、1个progressBar
2、程序所有代码using System.Text.RegularExpressions;u衡痕贤伎sing 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.NetworkInformation;using System.Text.RegularExpressions;namespace 局域网IP扫描{ public partial class Form1 : Form { public Form1() { InitializeComponent(); } string StartIPAddress = ""; string EndIPAddress = ""; //开始扫描地址 int intStrat = 0; //终止扫描地址 int intEnd = 0; private void button1_Click(object sender, EventArgs e) { listBox1.Items.Clear(); //开始扫描IP地址 StartIPAddress = textBox1.Text; //终止扫描IP地址 EndIPAddress = textBox2.Text; //开始扫描地址 intStrat = Int32.Parse(StartIPAddress.Substring(StartIPAddress.LastIndexOf(".") + 1)); //终止扫描地址 intEnd = Int32.Parse(EndIPAddress.Substring(EndIPAddress.LastIndexOf(".") + 1)); //指定进度条最大值 progressBar1.Minimum = intStrat; //指定进度条最小值 progressBar1.Maximum = intEnd - 1; //指定进度条初始值 progressBar1.Value = progressBar1.Minimum; //如果开始扫描textbox为IP地址 if (isIp(textBox1.Text.Trim())) { button1.Enabled = false; if (intEnd < intStrat) { MessageBox.Show("终止扫描地址小于起始扫描地址"); button1.Enabled = true; return; } if (isIp(textBox2.Text.Trim())) { try { for (int i = intStrat; i < intEnd; i++) { Ping myping; myping = new Ping(); myping.PingCompleted += new PingCompletedEventHandler(pingIpStatus); string pingIp = textBox1.Text.ToString().Substring(0, textBox1.Text.ToString().LastIndexOf(".") + 1) + i.ToString(); myping.SendAsync(pingIp,1000,null); progressBar1.Value = i; } button1.Enabled = true; } catch { button1.Enabled = true; } } else { //输入IP地址非法 MessageBox.Show("结束扫描IP地址非法","错误",MessageBoxButtons.OK,MessageBoxIcon.Error ); button1.Enabled = true; } } else { //输入IP地址非法 MessageBox.Show("开始扫描IP地址非法", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error); button1.Enabled = true; } } #region 判断是否为IP地址 /// <summary> /// 验证IP地址是否合法 /// </summary> /// <param name="ip">要验证的IP地址</param> /// <returns></returns> public static bool isIp(string ip) { //如果为空，认为验证不合格 if (string.IsNullOrEmpty(ip)) { return false; } //清除要验证字符传中的空格 ip = ip.Trim(); //模式字符串，正则表达式 string patten = @"^((2[0-4]\d|25[0-5]|[01]?\d\d?)\.){3}(2[0-4]\d|25[0-5]|[01]?\d\d?)$"; //验证 return Regex.IsMatch(ip, patten); } #endregion #region ping 局域网内IP地址状态 private void pingIpStatus(object sender, PingCompletedEventArgs e) { //如果ping 返回状态为 OK if (e.Reply.Status == IPStatus.Success) { listBox1.Items.Add("IP地址：" + e.Reply.Address.ToString()); } } #endregion }}