关键字及描述的添加与读取代码,Asp.Net代码库,德仔网

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【Asp.Net】关键字及描述的添加与读取

作者:Dezai.CN / 发布于2013/2/21/ 469

关键字及描述的添加与读取

/// <summary>
        /// 添加关键字以及描述
         /// </summary>
        /// <param name="key">关键字</param>
        /// <param name="des">描述</param>
        /// <param name="page">Page</param>
        public static void addMeta(string key, string des, System.Web.UI.Page page)
        {
            Literal keywords = new Literal(), description = new Literal();
            keywords.Text = "<meta name='Keywords' content='" + key + "' />";
            description.Text = "<meta name='Description' content='" + des + "' />";
            page.Header.Controls.Add(keywords);
            page.Header.Controls.Add(description);
        }
        /// <summary>
        /// 读取某网页的关键字或描述
         /// </summary>
        /// <param name="url">链接地址(http://www.baidu.com)</param>
        /// <param name="Type">所要读取的类别</param>
        /// <returns></returns>
        public static string setMeta(string url, string Type)
        {
            using (System.Net.WebClient wc = new System.Net.WebClient())
            {
                string html = wc.DownloadString(url);
                int sp = html.IndexOf("name=" + Type);
                int se = html.IndexOf("\">", sp);
                html = html.Substring(sp, se - sp);
                sp = html.IndexOf("\"") + 1;
                return html.Substring(sp);
            }
        }

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