using?System;
using?System.Collections.Generic;
using?System.ComponentModel;
using?System.Data;
using?System.Drawing;
using?System.IO;
using?System.Linq;
using?System.Net;
using?System.Text;
using?System.Threading;
using?System.Threading.Tasks;
using?System.Windows.Forms;

namespace?爬蟲demo
{
????public?partial?class?demo?:?Form
????{
????????public?demo（）
????????{
????????????InitializeComponent（）;
????????????Control.CheckForIllegalCrossThreadCalls?=?false;//ul可以在線程間更新
????????}
????????#region?存放參數

????????///?

????????///?實現爬蟲類
????????///?

????????//Spider?;
????????///?

????????///?保存文件路徑，默認是程序bin文件里的“下載文件”文件夾
????????///?

????????string?savePath?=?“下載文件“;//默認是程序bin文件里的“下載文件”文件夾
????????Thread?startDownload;//開始下載線程

????????#endregion
????????#region?Load事件
????????private?void?demo_Load（object?sender?EventArgs?e）
????????{
????????????savePath?=txtPath.Text.Trim（）;//獲取默認路徑
????????????btnStop.Enabled?=?false;//禁用停止下載按鈕

????????????Spider.ContentsSaved?+=?new?Spider.ContentsSavedHandler（Spider_ContentsSaved）;//正文內容被保存到本地后觸發
????????????Spider.DownloadFinish?+=?new?Spider.DownloadFinishHandler（Spider_DownloadFinish）;//下載完成
????????????Spider.txtShow?+=?new?Spider.ex（txtShow）;//下載完成

????????????
????????}
????????#endregion

????????#region?委托方法???下載完成

????????///?

????????///?全部下載完成提示
????????///?

????????///?下載數量
????????///?
????????#region?
????????void?Spider_DownloadFinish（int?count）
????????{
????????????Spider.Abort（）;
????????????Spider._stop?=?true;//停止下載
????????????btnStar.Enabled?=?true;//啟用開始下載按鈕
????????????btnStar.Text?=?“開始“;
????????????lbStatus.Text?=?“空閑“;//狀態
????????????btnStop.Enabled?=?false;//禁用開始下載按鈕
????????????btnPath.Enabled?=?true;//啟用選擇保存目錄按鈕
????????????txtUrl.ReadOnly?=?false;//啟用編輯url文本框
????????????btnSheZhi.Enabled?=?true;//啟用設置參數按鈕
????????????MessageBox.Show（“下載完成：“?+?count）;
????????}
????????#endregion
????????#region?數據提示
????????void?txtShow（string?count）
????????{
????????????try
????????????{
????????????????rtxtWebException.AppendText（count）;//把提示內容加載到控件
????????????????rtxtWebException.ScrollToCaret（）;//將控件內容滾動到當前插入符號位置
????????????}
????????????catch
????????????{

????????????}

??????????
????????}
????????#endregion
????????#endregion

????????#region?文件下載完成提示

????????///?

????????///?文件下載完成提示
????????///?

????????///?保存路徑
????????///?url
????????///?文件類型
????????void?Spider_ContentsSaved（string?path?string?urlstring?fileType）
????????{
????????????#region?顯示到控件上面去
????????????ListViewItem?li?=?new?ListViewItem（“1“）;
????????????li.SubItems.Add（（listView1.Items.Count+1）.ToString（））;
????????????li.SubItems.Add（url.Trim（））;
????????????li.SubItems.Add（path）;
????????????li.SubItems.Add（fileType）;
?

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2016-09-21?22:16??爬蟲demo\
?????目錄???????????0??2016-09-21?22:16??爬蟲demo\.vs\
?????目錄???????????0??2016-09-21?22:16??爬蟲demo\.vs\爬蟲demo\
?????目錄???????????0??2016-09-21?22:16??爬蟲demo\.vs\爬蟲demo\v14\
?????文件???????61952??2016-09-28?22:54??爬蟲demo\.vs\爬蟲demo\v14\.suo
?????目錄???????????0??2016-09-29?19:01??爬蟲demo\爬蟲demo\
?????文件?????????997??2016-09-19?10:06??爬蟲demo\爬蟲demo.sln
?????文件?????????184??2016-09-21?21:09??爬蟲demo\爬蟲demo\App.config
?????目錄???????????0??2016-09-25?16:20??爬蟲demo\爬蟲demo\bin\
?????目錄???????????0??2016-09-28?22:53??爬蟲demo\爬蟲demo\bin\Debug\
?????目錄???????????0??2016-09-29?18:58??爬蟲demo\爬蟲demo\bin\Debug\下載文件\
?????文件??????135168??2016-09-29?19:00??爬蟲demo\爬蟲demo\bin\Debug\下載文件\201606132041386391.jpg
?????文件???????46006??2016-09-29?18:58??爬蟲demo\爬蟲demo\bin\Debug\下載文件\gxitlogo2.png
?????文件???????27079??2016-09-29?18:58??爬蟲demo\爬蟲demo\bin\Debug\下載文件\gxrjxy.cn_actvideo.html
?????文件???????19936??2016-09-29?18:58??爬蟲demo\爬蟲demo\bin\Debug\下載文件\gxrjxy.cn_actvideo_show_833.html
?????文件???????52055??2016-09-29?18:58??爬蟲demo\爬蟲demo\bin\Debug\下載文件\gxrjxy.cn_introduction.html
?????文件???????10662??2016-09-29?18:58??爬蟲demo\爬蟲demo\bin\Debug\下載文件\gxrjxy.cn_newslist_1097.html
?????文件???????10662??2016-09-29?18:58??爬蟲demo\爬蟲demo\bin\Debug\下載文件\gxrjxy.cn_newslist_1098.html
?????文件???????17897??2016-09-29?18:58??爬蟲demo\爬蟲demo\bin\Debug\下載文件\gxrjxy.cn_news_show-1802.html
?????文件???????75502??2016-09-29?18:58??爬蟲demo\爬蟲demo\bin\Debug\下載文件\gxrjxy.html
?????文件????????9812??2016-09-29?18:58??爬蟲demo\爬蟲demo\bin\Debug\下載文件\logo2.png
?????文件???????19178??2016-09-29?18:58??爬蟲demo\爬蟲demo\bin\Debug\下載文件\工信部logo.png
?????文件???????32768??2016-09-29?19:01??爬蟲demo\爬蟲demo\bin\Debug\爬蟲demo.exe
?????文件?????????184??2016-09-21?21:09??爬蟲demo\爬蟲demo\bin\Debug\爬蟲demo.exe.config
?????文件???????52736??2016-09-29?19:01??爬蟲demo\爬蟲demo\bin\Debug\爬蟲demo.pdb
?????文件???????22696??2016-09-29?19:09??爬蟲demo\爬蟲demo\bin\Debug\爬蟲demo.vshost.exe
?????文件?????????184??2016-09-21?21:09??爬蟲demo\爬蟲demo\bin\Debug\爬蟲demo.vshost.exe.config
?????文件?????????490??2016-07-16?19:44??爬蟲demo\爬蟲demo\bin\Debug\爬蟲demo.vshost.exe.manifest
?????目錄???????????0??2016-09-25?16:20??爬蟲demo\爬蟲demo\bin\Release\
?????文件????????9011??2016-09-29?19:01??爬蟲demo\爬蟲demo\Form1.cs
?????文件???????20505??2016-09-29?19:01??爬蟲demo\爬蟲demo\Form1.Designer.cs
............此處省略31個文件信息