WinForm Collection website Beautiful picture program---multi-threaded article

Set the idea: acquisition target: http://www.8kmm.com, known list of URLs, apply multithreading (thread) to read the list, get the URL can not be repeated (locking lock). Allow unordered collection!

Multithreaded Core code:

#regionGlobal variables//Thread ListList<thread> threadsllist =NewList<thread>(); //URL listlist<string> uurls =Newlist<string>(); //finished listlist<string> okurls =Newlist<string>(); //number of beautiful pictures successfully obtained         Public intImgcount =0;#endregion//take a diagram Start button event Private voidLbtngetwebimgstart_linkclicked (Objectsender, LinkLabelLinkClickedEventArgs e) {lbtngetwebimgstart.enabled=false;        Getwebsiteimg (); }//Drawing Stop button event        Private voidLbtngetwebimgstop_linkclicked (Objectsender, LinkLabelLinkClickedEventArgs e) {            Try            {                foreach(Thread tinchthreadsllist) {                    if(t! =NULL) {t.abort (); }                }            }            Catch(Exception ex) {Writelog ("Stop failed:"+Ex.            Message); }            finally{lbtngetwebimgstart.enabled=true; }        }        /// <summary>        ///Get Picture Main method/// </summary>        Private voidgetwebsiteimg () {Try{Imgcount=0;                Okurls.clear ();                Uurls.clear (); Threadsllist.clear (); //First initialize the above                string[] URLs = TxtUrl.Text.Split (New string[] {"\ r \ n"}, Stringsplitoptions.removeemptyentries); Lblc.text=URLs.                Length.tostring (CultureInfo.InvariantCulture); Uurls=Newlist<string>(URLs);  for(inti =0; I <int. Parse (Numthreadud.text); i++)//Looping Create Threads{Thread T=NewThread (Task); T.name=i.tostring (); T.isbackground=true;                    Threadsllist.add (t);                T.start (); }             }            Catch(Exception ex) {Writelog (ex).            Message); }         }    Public voidTask () { while(Uurls.count >0) {Lblmsg.text=string. Format ("remaining: {0}, accessed: {1}, current number of threads: {2}", Uurls.count, (Okurls.count +1), Threadsllist.count); stringURL =GetUrl (); if(url = ="")                {                     Break; }                Else                {                    if(gethttpimg (URL) = = $)//only state 200 is normal, gethttpimg is my method of encapsulation, get the Web page, and get all the canonical pictures.{okurls.add (URL); Lblinfostart.text= (int. Parse (Lblinfostart.text) +1).                        ToString (CultureInfo.InvariantCulture);                        WriteHTML (Txturl.text); if(Lblc.text = = Lblinfostart.text)//determines whether the current quantity is total.{Lblmsg.text="Complete"; }                    }                }            }        }            /// <summary>        ///Thread loads lock to prevent multiple threads from removing the first one from the list at the same time/// </summary>        /// <returns></returns>         Public stringGetUrl () {Lock("GETURL")            {                if(Uurls.count >0)                {                    stringURL = uurls[0]; Uurls.removeat (0); returnURL; }                Else                {                    return ""; }            }        }

WinForm Collection website Beautiful picture program---multi-threaded article