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C#实现网段扫描

2008-12-26 12:36:51  1820
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<font face="Verdana">C#实现网段扫描</font><br/>&nbsp;
<p class="MsoNormal"><span lang="EN-US" style="FONT-SIZE: 18pt; FONT-FAMILY: 黑体; mso-hansi-font-family: Verdana">C#</span><span style="FONT-SIZE: 18pt; FONT-FAMILY: 黑体; mso-hansi-font-family: Verdana">实现网段扫描</span></p>
<p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">摘要</span></p>
<p class="MsoNormal"><span lang="EN-US"><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">想必大家对小榕时光等扫描器都非常熟悉了,有没有自己写一个的冲动。最近微软推实施了</span><span lang="EN-US">.NET</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">战略方案,</span><span lang="EN-US">C#</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">是主推语言,你们是否有兴趣用</span><span lang="EN-US">C#</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">来实现对局域网</span><span lang="EN-US">IP</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">地址的扫描,尝试一下自己写的快乐,那么请跟我来。</span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">--------------------------------------------------------------------------------</span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">目录</span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">1.</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">使用的类</span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">2.</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">获取本地主机</span><span lang="EN-US">IP</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">地址</span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">3.</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">远程查询</span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">4.</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">实现网段的扫描</span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">--------------------------------------------------------------------------------</span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">正文</span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">1.</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">先介绍一下使用的类:</span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">DNS</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">类:在</span><span lang="EN-US">.net</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">中的</span><span lang="EN-US">System.net</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">命名空间下,主要的功能是从</span><span lang="EN-US"> Internet </span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">域名系统</span><span lang="EN-US"> (DNS) </span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">检索关于特定主机的信息。</span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">IPHostEntry</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">类:将一个域名系统</span><span lang="EN-US"> (DNS) </span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">主机与一组别名和一组匹配的</span><span lang="EN-US"> IP </span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">地址关联,和</span><span lang="EN-US">DNS</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">类一起使用。</span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">IPAddress </span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">类:</span><span lang="EN-US">IP </span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">网络上的地址。</span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">使用的命名空间有:</span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">System.Net </span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">命名空间为当前网络上使用的多种协议提供了简单的编程接口</span><span lang="EN-US">.</span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">System.IO</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">命名空间包含允许在数据流和文件上进行同步和异步读取及写入的类型。</span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">System.Thread </span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">命名空间主要是用来多线程序编程。</span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">程序实现以下几个功能:</span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">2.</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">获取本地主机</span><span lang="EN-US">IP</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">地址</span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">//</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">对</span><span lang="EN-US">Button</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">控件的事件的响应</span></p>
<p class="MsoNormal"><span lang="EN-US">private void buttion1_click(object sender,System.Event.Args e)</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-spacerun: yes">&nbsp;&nbsp; </span>{</span></p>
<p class="MsoNormal"><span lang="EN-US">IPHostEntry myHost = new IPHostEntry();</span></p>
<p class="MsoNormal"><span lang="EN-US">Try</span></p>
<p class="MsoNormal"><span lang="EN-US">{</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-spacerun: yes">&nbsp; </span>// Dns.GetHostName()</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">获取本地计算机的主机名</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-spacerun: yes">&nbsp; </span>// Dns.GetHostByName()</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">获取指定</span><span lang="EN-US"> DNS </span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">主机名的</span><span lang="EN-US"> DNS </span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">信息</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-spacerun: yes">&nbsp; </span>//</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">得到本地主机的</span><span lang="EN-US">DNS</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">信息</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-spacerun: yes">&nbsp; </span>myHost = Dns.GetHostByName(Dns.GetHostName());</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-spacerun: yes">&nbsp; </span>//</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">显示本地主机名</span></p>
<p class="MsoNormal"><span lang="EN-US">textBox1.Text = myHost.HostName.ToString();</span></p>
<p class="MsoNormal"><span lang="EN-US">//</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">显示本地主机的</span><span lang="EN-US">IP</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">地址表</span></p>
<p class="MsoNormal"><span lang="EN-US">for(int i=0; i&lt;myHost.AddressList.length;i++)</span></p>
<p class="MsoNormal"><span lang="EN-US">{</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-spacerun: yes">&nbsp;&nbsp; </span>richTextBox1.AppendText(</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">“本地主机</span><span lang="EN-US">IP</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">地址</span><span lang="EN-US">-&gt;</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">”</span><span lang="EN-US">+myHost.AddressList.ToString()+</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">”</span><span lang="EN-US">\r</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">”</span><span lang="EN-US">);</span></p>
<p class="MsoNormal"><span lang="EN-US">}</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>catch(Exception error)</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-tab-count: 4">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>{</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-tab-count: 5">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>MessageBox.Show(error.Message);</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>}</span></p>
<p class="MsoNormal"><span lang="EN-US">}//private</span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">3.</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">远程查询</span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-spacerun: yes">&nbsp; </span>private void buttion2_click(object Sender,System.EventArgs e)</span></p>
<p class="MsoNormal"><span lang="EN-US">{</span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-spacerun: yes">&nbsp;&nbsp; </span>IPHostEntry myDnsToIP = new IPHostEntry();</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-spacerun: yes">&nbsp; </span>//Dns.Resolve </span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">方法</span><span lang="EN-US">: </span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">将</span><span lang="EN-US"> DNS </span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">主机名或以点分隔的四部分表示法格式的</span><span lang="EN-US"> //<span style="mso-spacerun: yes">&nbsp; </span>IP </span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">地址解析为</span><span lang="EN-US"> IPHostEntry</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">实例</span></p>
<p class="MsoNormal"><span lang="EN-US">myDnsToIP =Dns.Resolve(textBox2.Text.ToString());</span></p>
<p class="MsoNormal"><span lang="EN-US">//</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">显示此域名的</span><span lang="EN-US">IP</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">地址的列表</span></p>
<p class="MsoNormal"><span lang="EN-US">for(int i=0;i&lt;myDnsToIPAddressList.Length;i++)</span></p>
<p class="MsoNormal"><span lang="EN-US">{</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-spacerun: yes">&nbsp;</span><span style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp; </span>rich.TextBox1.AppendText(textBox2.Text+</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">”的</span><span lang="EN-US">IP</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">地址是”</span><span lang="EN-US">+myDnsToIP.AddressList.ToString()+</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">”</span><span lang="EN-US">\r</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">”</span><span lang="EN-US">);</span></p>
<p class="MsoNormal"><span lang="EN-US">}</span></p>
<p class="MsoNormal"><span lang="EN-US">}</span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">4.</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">实现网段的扫描</span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">实现网段的扫描,确定网络中正在使用的主机数目。这里使用了多线程技术,增加了一个线程,为了防止程序扫描的时间过长,影响程序的响应。不过在</span><span lang="EN-US">.net</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">中由于使用了垃圾收集技术所以对线程的控制也不是很复杂的。</span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">private void button3_click(object sender, System.EventArgs e)</span></p>
<p class="MsoNormal"><span lang="EN-US">{</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>//Thread </span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">类</span><span lang="EN-US">: </span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">创建并控制线程</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>Thread thScan = new thread(new ThreadStrart(ScanTarget));</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>//Thread.Start </span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">方法</span><span lang="EN-US">:</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">启动线程</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>thScan.Strart();</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-spacerun: yes">&nbsp; </span>}</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>private void ScanTarget()</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>{</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-tab-count: 2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>//</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">构造</span><span lang="EN-US">IP</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">地址的</span><span lang="EN-US">31-8Bit </span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">位,也就是固定的</span><span lang="EN-US">IP</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">地址的前段</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-tab-count: 2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>// numericUpDown1</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">是定义的</span><span lang="EN-US">System.Windows.Forms.NumericUpDown</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">控件</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>string strIPAddress=numericUpDown1.Text+”.”+numericUpDown2.Text+”.”+numericUpDown3.Text+”.”;</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>//</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">开始扫描地址</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>int nStrat = Int32.Parse(numericUpDown4.Text);</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-tab-count: 2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>//</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">终止扫描地址</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>int nEnd =Int32.Parse(numericUpDown5.Text);</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-tab-count: 2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>//</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">扫描的操作</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-tab-count: 2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>for(int i=nStrat;i&lt;=nEnd;i++)</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-tab-count: 2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>{</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-tab-count: 3">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>string strScanIPAdd = strIPAddress +i.ToString();</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-tab-count: 3">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>//</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">转换成</span><span lang="EN-US">IP</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">地址</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-tab-count: 3">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>IPAddress myScanIP = IPAddress.Parse(strScanIPAdd);</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-tab-count: 3">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>try</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-tab-count: 3">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>{</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-tab-count: 4">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>//</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">你可以加入自已的</span><span lang="EN-US">,</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">增强功能</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>// Dns.GetHostByAddress </span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">方法</span><span lang="EN-US">: </span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">根据</span><span lang="EN-US"> IP </span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">地</span></p>
<p class="MsoNormal"><span lang="EN-US">//</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">址获取</span><span lang="EN-US"> DNS </span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">主机信息。</span></p>
<p class="MsoNormal"><span lang="EN-US">IPHostEntry myScanHost = </span></p>
<p class="MsoNormal"><span lang="EN-US">Dns.GetHostByAddress(myScanIP);</span></p>
<p class="MsoNormal"><span lang="EN-US">//</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">获取主机的名</span></p>
<p class="MsoNormal"><span lang="EN-US">string strHostName =myScanHost.HostName.ToString();</span></p>
<p class="MsoNormal"><span lang="EN-US">richTextBox1.AppendText(strScanIPAdd+”-&gt;”+strHostName+”\r”);</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-tab-count: 3">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>}</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-tab-count: 3">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>catch(Exception error)</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-tab-count: 3">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>{</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-tab-count: 4">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>MessageBox.Show(error.Message);</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-tab-count: 3">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>}</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-tab-count: 2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>}//for<span style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-spacerun: yes">&nbsp; </span>}//private</span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">到此为止一个简单用</span><span lang="EN-US">C#</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New="New"  Roman'; mso-ascii-font-family: 'Times New="New"  Roman'">实现扫描器的主要功能就完成了,试一下你可以看到你的网络上的主机,有没有成就感了:)</span></p>
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2008-12-26 12:36:51   评论 分享淘帖

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