Bill: C # WebClient automatically determine whether the encoding is UTF-8 or GBK, and has a time-out judgment function

 Public classwebdownload:webclient {Private int_timeout; /// <summary>        ///time-out (milliseconds)/// </summary>         Public intTimeout {Get            {                return_timeout; }            Set{_timeout=value; }        }         Publicwebdownload () { This. _timeout =60000; }         PublicWebdownload (intTimeout) {             This. _timeout =timeout; }        protected OverrideWebRequest GetWebRequest (Uri address) {varresult =Base.            GetWebRequest (address); Result. Timeout= This. _timeout; returnresult; }         Public stringGet (stringURL) {            stringHTML =""; vardata = This.            Downloaddata (URL); varR_utf8 =NewSystem.IO.StreamReader (NewSystem.IO.MemoryStream (data), Encoding.UTF8);//Place HTML in UTF8 encoded StreamReader            varR_GBK =NewSystem.IO.StreamReader (NewSystem.IO.MemoryStream (data), encoding.default);//Place HTML in GBK encoded StreamReader            varT_utf8 = R_utf8. ReadToEnd ();//read the HTML content            varT_GBK = R_GBK. ReadToEnd ();//read the HTML content            if(!isluan (T_utf8))//determine if UTF8 is garbled{html=T_utf8; }            Else{html=T_GBK; }            returnhtml; }        BOOLIsluan (stringtxt) {            varbytes =Encoding.UTF8.GetBytes (TXT); //239 191 189             for(vari =0; I < bytes. Length; i++)            {                if(I < bytes. Length-3)                    if(Bytes[i] = =239&& Bytes[i +1] ==191&& Bytes[i +2] ==189)                    {                        return true; }            }            return false; }    }

Bill: C # WebClient automatically determine whether the encoding is UTF-8 or GBK, and has a time-out judgment function