数据采集器

下载
数据采集器，其实很简单，没有想像的那么复杂。
１使用HttpWebRequest或者WebClient获取数据
2 使用正则表达式获取你想要的数据
现在将相关代码贴出来

public static string GetHtml(string begin, string end, string content)
        {
            Regex reg = new Regex(begin + "((.*?\\n?)*?)" + end);
            Match match = reg.Match(content);

            if (match != Match.Empty)
            {
                //content = content.Replace(match.Groups[1].ToString(), string.Empty);
                return match.Groups[1].ToString();
            }
            else
            {
                return string.Empty;
            }
        }
        public static StringCollection GetHtmls(string begin, string end, string content)
        {
            Regex reg = new Regex(begin + "((.*?\\n?)*?)" + end);
            MatchCollection  matches = reg.Matches(content);
            StringCollection list=new StringCollection();
            foreach(Match match in matches)           
            {
                if (match != Match.Empty)
                {
                    list.Add(match.Value);
                }
            }
            return list;
        }

示例：获取代理器Ip下载