获取新浪读书频道,书的列表程序

zoukankan html css js c++ java

获取新浪读书频道,书的列表程序

using System;
using System.Net;
using System.IO;
using System.Text;
using System.Collections;
using System.Text.RegularExpressions;

namespace ConsoleApplication1
{
    /**//// <summary>
    /// Class1 的摘要说明。
    /// </summary>
    class Class1
    {
        /**//// <summary>
        /// 应用程序的主入口点。
        /// </summary>
        [STAThread]
        static void Main(string[] args)
        {
            string url="http://book.sina.com.cn/nzt/lit/dixiashi/index.shtml";
            string content=Gethtml(url);

            string[,] arr=new string[85,85];
            arr[0,0]="";
            for(int i=1;i<=84;i++)
            {
                url="<a href=/nzt/lit/dixiashi/"+i+".shtml target=_blank class=a03>";
                string temp_1=GetChinese("[\u4e00-\u9fa5]",MID(content,url,80));//链接文字
                string temp_2="Books_zg_"+i+".html";
                arr[i,0]=temp_1;
                arr[0,i]=temp_2;
            }

            content=Getlist(4,700,arr);
            Writefile(@"C:\Documents and Settings\Administrator\桌面\index.html",content);
        }

        private static string MID(string Content,string StartString,int length)
        {
            string Intercept=Content;
            int a=Intercept.IndexOf(StartString);
            string aa=Intercept.Substring(a,length);
            return aa;
        }

        /**//// <summary>
        /// 获取网页html代码
        /// </summary>
        /// <param name="url"></param>
        /// <returns></returns>
        private static string Gethtml(string url)
        {
            WebClient wc=new WebClient();
            Stream str=wc.OpenRead(url);
            StreamReader sr=new StreamReader(str,System.Text.Encoding.GetEncoding("GB2312"));
            return sr.ReadToEnd();
        }

        // 获取指定网页的HTML代码
        static string GetPageSource(string URL)
        {
            Uri uri =new Uri(URL);

            HttpWebRequest hwReq = (HttpWebRequest)WebRequest.Create(uri);
            HttpWebResponse hwRes = (HttpWebResponse)hwReq.GetResponse();

            hwReq.Method = "Get";

            hwReq.KeepAlive = false;

            StreamReader reader = new StreamReader(hwRes.GetResponseStream(),System.Text.Encoding.GetEncoding("GB2312"));

            return reader.ReadToEnd();
        }

        /**//// <summary>
        /// 获取列表
        /// </summary>
        /// <param name="col">列数</param>
        /// <param name="ww">table的宽度</param>
        /// <param name="arr">数组</param>
        /// <returns></returns>
        static string  Getlist(int col,int ww,string[,] arr)
        {
            int temp_1=arr.GetLength(0);
            int row=(int)System.Math.Ceiling(temp_1/Convert.ToDouble(col));//行数

            int temp_2=0;

            int temp_3=(int)System.Math.Floor(ww/Convert.ToDouble(col));//得到每列的宽度

            StringBuilder sb=new StringBuilder();
            sb.Append("<html><head><meta http-equiv=\"Content-Type\" content=\"text/html; charset=gb2312\"><title>书的列表</title><style type=\"text/css\"></style></head><body><table width=\""+ww+"\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">");
            for(int i=1;i<=row;i++)
            {
                sb.Append("<tr>");
                for(int j=0;j<col;j++)
                {
                    temp_2++;
                    sb.Append("<td width=\""+temp_3+"\">");
                    try
                    {
                        sb.Append("<a href=\""+arr[0,temp_2]+"\" target=\"_blank\" class=\"a03\">"+arr[temp_2,0]+"</a>");
                    }
                    catch
                    {
                    }
                    sb.Append("</td>");
                }
                sb.Append("</tr>");
                sb.Append("<tr><td colspan=\""+col+"\" height=\"7\"></td></tr>");
            }
            sb.Append("</table></body></html>");

            return sb.ToString();
        }

        /**//// <summary>
        /// 写文件
        /// </summary>
        /// <param name="path"></param>
        /// <param name="text"></param>
        private static void Writefile(string path,string text)
        {
            using(StreamWriter sw=new StreamWriter(path,false,System.Text.Encoding.GetEncoding("gb2312"))) //中文,QuickCHM支持
            {
                sw.Write(text);
            }
        }

        // 提取HTML代码中的网址
        static ArrayList GetHyperLinks(string htmlCode)
        {
            ArrayList al = new ArrayList();

            string strRegex = @"http://([\w-]+\.)+[\w-]+(/[\w- ./?%&=]*)?";

            Regex r = new Regex(strRegex,RegexOptions.IgnoreCase);
            MatchCollection m = r.Matches(htmlCode);

            for(int i=0; i<=m.Count-1; i++)
            {
                bool rep = false;
                string strNew = m[i].ToString();

                // 过滤重复的URL
                foreach(string str in al)
                {
                    if(strNew==str)
                    {
                        rep =true;
                        break;
                    }
                }

                if(!rep) al.Add(strNew);
            }

            al.Sort();

            return al;
        }

        static string GetChinese(string reg,string str)
        {
            int temp=str.IndexOf("(");
            string temp_1=str.Substring(temp+1,1);
            Regex r = new Regex(reg,RegexOptions.IgnoreCase);
            MatchCollection m = r.Matches(str);

            string strNew="";
            for(int i=0; i<=m.Count-1; i++)
            {
                strNew += m[i].ToString();
            }

            return strNew+"("+temp_1+")";
        }

    }
}

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原文地址：https://www.cnblogs.com/wang123/p/602777.html