C # programs

usingSystem;usingSystem.Collections.Generic;usingSystem.IO;usingSystem.Linq;usingSystem.Net;usingSystem.Text;usingSystem.Text.RegularExpressions;usingSystem.Threading.Tasks;namespacemeizi{ Public classProgram {Static voidMain (string[] args) {            NewGetmeizipic (); }    }    /// <summary>    ///Get sister Pictures/// </summary>     Public classGetmeizipic {Private ReadOnly string_path; Private Const stringImgregex =@"]*?src\s*=\s*["'"? ([^ ' "" ">]+?) [ ‘""] [^>]*?>";//Regular Expressions for pictures        Private Const stringLinkregex =@"";  PublicGetmeizipic () {_path= Dealdir (Path.Combine (Environment.currentdirectory,"Images")); Console.WriteLine ("=============== started collecting ===============");  for(vari =1; I <Ten; i++) {Console.WriteLine ("=============== downloading the {0} page data ===============", i);            DOFETCHSTEP1 (i); } Console.WriteLine ("=============== Acquisition Complete ==============="); }        Private stringDealdir (stringpath) {            if(!directory.exists (path))            Directory.CreateDirectory (path); returnpath; }        Private voidDOFETCHSTEP1 (intpagenum) {            varRequest = (HttpWebRequest) webrequest.create ("http://www.sepaidui.com/?sort=4&page="+pagenum); Request. Credentials=CredentialCache.DefaultCredentials; varResponse =(HttpWebResponse) request.            GetResponse (); if(Response. StatusCode! = Httpstatuscode.ok)return; varstream =Response.            GetResponseStream (); if(Stream = =NULL)return; using(varSR =NewStreamReader (Stream)) {FetchLinksFromSource1 (Sr.            ReadToEnd ()); }        }        Private voidFetchLinksFromSource1 (stringHtmlsource) {            varMatcheslink = Regex.Matches (Htmlsource, Linkregex, Regexoptions.ignorecase |regexoptions.singleline); foreach(Match minchMatcheslink) {                stringhref = m.groups[0]. Value.split ('"')[1];            DOFETCHSTEP2 (HREF); }        }        Private voidDOFETCHSTEP2 (stringhref) {            varRequest =(HttpWebRequest) webrequest.create (HREF); varh =request.            Headers; Request. Credentials=CredentialCache.DefaultCredentials; varResponse =(HttpWebResponse) request.            GetResponse (); if(Response. StatusCode! = Httpstatuscode.ok)return; varstream =Response.            GetResponseStream (); if(Stream = =NULL)return; using(varSR =NewStreamReader (Stream)) {FetchLinksFromSource2 (Sr.            ReadToEnd ()); }        }        Private voidFetchLinksFromSource2 (stringHtmlsource) {            varMATCHESIMGSRC = Regex.Matches (Htmlsource, Imgregex, Regexoptions.ignorecase |regexoptions.singleline); foreach(Match minchmatchesimgsrc) {                varhref = m.groups[1].                Value; //select only pictures from Sina albums                if(href.) Contains ("sinaimg") && checkisurlformat (href) &&!href. Contains ("60d02b59tw1eq6g7srmiwj20pv03mdg8") {Console.WriteLine (href); }                Else                    Continue; using(varMywebclient =NewWebClient ()) {                    Try{mywebclient.downloadfile (NewUri (HREF), Path.Combine (_path, path.getrandomfilename () +path.getextension (HREF))); }                    Catch(Exception ex) {Console.WriteLine (ex).                    Message); }                }            }        }        Private ReadOnlyRegex _isurlformat =NewRegex (@"http//? ([\w-]+\.) +[\w-]+ (/[\w-./?%&=]*)?"); Private BOOLCheckisurlformat (stringvalue) {            return_isurlformat.ismatch (value); }    }}

C # programs