A.2多任务网段扫描练习 （增加功能）

为了实现对IP地址后两段的任意设定 几乎改掉了之前所有的代码 -.-||

与之前http://blog.csdn.net/qq_35252878/article/details/60781383相比，增加了对IP地址后两位也可以设置最大最小值的功能。

效果：

MainWindow.xaml.cs:

using System;using System.Collections.Generic;using System.Linq;using System.Net;using System.Text;using System.Threading.Tasks;using System.Windows;using System.Windows.Controls;using System.Windows.Data;using System.Windows.Documents;using System.Windows.Input;using System.Windows.Media;using System.Windows.Media.Imaging;using System.Windows.Navigation;using System.Windows.Shapes;using System.Timers;using System.Diagnostics;using System.Threading;using System.Drawing;namespace A._2{    /// <summary>    /// MainWindow.xaml 的交互逻辑    /// </summary>    public partial class MainWindow : Window    {        public MainWindow()        {            InitializeComponent();        }        long minTime;        long maxTime;        string add2_41;        int add2_4;        string add2_51;        int add2_5;        string add3_41;        int add3_4;        string add3_51;        int add3_5;        string add2;        string address;        string add;        private void judge_IPAddress(object Address)        {            string Dname;            String address=(string)Address;            Stopwatch sw = new Stopwatch();            sw.Start();            try            {                IPAddress ip = IPAddress.Parse(address);                Dname = Dns.GetHostEntry(ip).HostName;            }            catch            {                Dname = "(不在线)";            }            sw.Stop();            if (sw.ElapsedMilliseconds > maxTime)                maxTime = sw.ElapsedMilliseconds;            if (sw.ElapsedMilliseconds < minTime)                minTime = sw.ElapsedMilliseconds;            ListBox.Dispatcher.Invoke(new Action(() => { ListBox.Items.Add("扫描地址：" + Address + ",扫描用时：" + sw.ElapsedMilliseconds + "毫秒，主机DNS名称：" + Dname); }));           // ListBox.Items.Add("扫描地址：" + Address + ",扫描用时："+sw.ElapsedMilliseconds+"毫秒，主机DNS名称："+Dname);            //if(num==0)            //    ListBox.Dispatcher.Invoke(new Action(() => { ListBox.Items.Add("扫描结束！"); }));            //Thread.Sleep(1000);        }        private void listBox_SelectionChanged(object sender, SelectionChangedEventArgs e)        {        }        private void textBox_TextChanged(object sender, TextChangedEventArgs e)        {        }        private  void convrt(int star)        {            if(star==add2_4)            {                //MessageBox.Show("star1=" + star+"开始"+add2_5);                for(int k=add2_5;k<=255;k++)                {                    add2 = star.ToString() + "." + k.ToString();                    address = add + add2;                    begin();                }            }            else if(star==add3_4)            {                for(int h=0;h<=add3_5;h++)                {                    add2 = star.ToString() + "." + h.ToString();                    address = add + add2;                    begin();                }            }            else            {                //MessageBox.Show("star="+star);                for(int q=0;q<=255;q++)                {                    add2 = star.ToString() + "." + q.ToString();                    address = add + add2;                    begin();                }            }        }        private void begin()        {                try                {                    IPAddress ip = IPAddress.Parse(address);                }                catch                {                    Textbox.Visibility = Visibility.Visible;                    return;                }                Thread t = new Thread(judge_IPAddress);                t.Start(address);        }        private void button_Click(object sender, RoutedEventArgs e)        {            minTime = 0xffff;            maxTime = 0;            int flag = 0;            int the2 = 0;            int the3 = 0;            int L1 = 0;            int L2 = 0;            add = textBox.Text;            int l = add.Length;            if(add[l-1]!='.')            {                add = add + '.';            }            Textbox.Foreground = new SolidColorBrush(Colors.White);             //num = Int32.Parse(textBox2.Text) - Int32.Parse(textBox1.Text);            string add2 = textBox1.Text;            string add3 = textBox2.Text;            for (int i = 0; i < add2.Length;i++)   //判断textbox1中是否是地址的后两段            {                if(add2[i]=='.')                {                    flag = 1;                    the2 = i;                }            }            if(flag==1) //起始值为***.***            {                L1 = add2.Length;                L2 = add3.Length;                add2_41 = add2.Substring(0, the2);//记录下倒数第二位的初始值                add2_4 = (Int32.Parse(add2_41));        //将倒数第二位的初始值转化int型                add2_51 = add2.Substring(L1 - the2);                add2_5 = Int32.Parse(add2_51);                for (int i = 0; i < add3.Length; i++)                {                    if (add3[i] == '.')                        the3 = i;                }                add3_41 = add3.Substring(0, the3);//记录下倒数第二位的结束值                add3_4 = (Int32.Parse(add3_41));        //将倒数第二位的结束值转化int型                add3_51 = add3.Substring(L2 - the3);                add3_5 = Int32.Parse(add3_51);                if (add2_4 > add3_4)                    add2_4 ^= add3_4 ^= add2_4 ^= add3_4;                //ListBox.Dispatcher.Invoke(new Action(() => { ListBox.Items.Add("初始：" + add2_4 + ",结束：" + add3_4 + "初始：" + add2_5+"结束："+add3_5); }));                for(int i=add2_4;i<=add3_4;i++)                {                    convrt(i);                }                    //ListBox.Dispatcher.Invoke(new Action(() => { ListBox.Items.Add("最长用时：" + maxTime + "s,最短用时：" + minTime + "s."); }));                    MessageBox.Show("1扫描结束！"+"最长用时："+maxTime+"最短用时："+minTime);            }            if(flag==0) //起始值为***            {                for (int i = Int32.Parse(textBox1.Text); i <= Int32.Parse(textBox2.Text); i++)                {                    address = add + i.ToString();                    begin();                }                    //t.Abort();                    //ListBox.Dispatcher.Invoke(new Action(() => { ListBox.Items.Add("最长用时：" + maxTime + "s,最短用时：" + minTime + "s."); }));                    MessageBox.Show("2扫描结束！" + "最长用时：" + maxTime + "最短用时：" + minTime);            }        }        private void Textbox_TextChanged_1(object sender, TextChangedEventArgs e)        {        }    }}

目前只是达到了预期的效果，还有很多地方不尽完善。
一会或许还要进行完善，注释显示了很多思考过程，不想删。