C# 局域网IP扫描小工具
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;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.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
}
}