生活已是百般艰难,为何不努力一点。下面图老师就给大家分享使用C#编写查询IP段功能的程序,希望可以让热爱学习的朋友们体会到设计的小小的乐趣。
【 tulaoshi.com - 编程语言 】
本文将通过一个实例来向大家讲解如何使用C#来编写一个具备查询IP段功能的小程序。
(本文来源于图老师网站,更多请访问http://www.tulaoshi.com/bianchengyuyan/)主要功能:查询一个IP所有的IP段.
关键:从Byte数组到ulong的转换出来的数字和 IPAddress.Address 返回值的是不一样的.
以下是引用片段:
using System;
using System.Collections.Generic;
using System.Text;
using System.Net;
namespace IPUtility
{
class Program
{
static void Main(string[] args)
{
IPRangeManage irm = new IPRangeManage();
irm.Add(new IPRange("石家庄", "219.148.24.0", "219.148.63.255"));
irm.Add(new IPRange("石家庄", "222.222.0.0", "222.222.63.255"));
irm.Add(new IPRange("唐山", "219.148.64.0", "219.148.79.255"));
irm.Add(new IPRange("保定", "219.148.20.0", "219.148.23.255"));
Console.WriteLine(irm.Search("219.148.56.3").Name);
Console.ReadLine();
}
}
public class IPRange
{
private string _Name = string.Empty;
private ulong _BeginIP = 0;
private ulong _EndIP = Int32.MaxValue;
/**////
/// IP段名称
///
public string Name
{
get { return _Name; }
set { _Name = value; }
}
/**////
/// ?始IP
///
public ulong BeginIP
{
get { return _BeginIP; }
set { _BeginIP = value; }
}
/**////
/// ?束IP
///
public ulong EndIP
{
get { return _EndIP; }
set { _EndIP = value; }
}
/**////
/// 此IP段的范?
///
public ulong Range
{
get
{
return EndIP - BeginIP;
}
}
public IPRange(string name, string ipBegin, string ipEnd)
{
this.Name = name;
this.BeginIP = IP2A(ipBegin);
this.EndIP = IP2A(ipEnd);
}
public static ulong IP2A(string ip)
{
byte[] bytes = IPAddress.Parse(ip).GetAddressBytes();
ulong ret = 0;
foreach (byte b in bytes)
{
ret = 8;
ret |= b;
}
return ret;
}
public static int Compare(IPRange x, IPRange y)
{
if(x.Range == y.Range)
return 0;
else if(x.Range y.Range)
return 1;
else return -1;
}
}
public class IPRangeManage
{
public IPRangeManage()
{ }
private List IPRange _IPRangeList = new List IPRange();
private bool _NeedSort = true;
public void Add(IPRange ipRange)
{
_IPRangeList.Add(ipRange);
_NeedSort = true;
}
private void Sort()
{
if (_NeedSort)
{
_IPRangeList.Sort(new Comparison(IPRange.Compare));
}
}
public IPRange Search(string ipString)
{
ulong ip = IPRange.IP2A(ipString);
this.Sort();
foreach (IPRange ir in _IPRangeList)
{
if (ir.BeginIP = ip && ir.EndIP = ip)
{
return ir;
}
}
return null;
}
}
}
来源:http://www.tulaoshi.com/n/20160219/1605194.html
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