public string ClearHtml(string HtmlStr)
{
string tmpStr = HtmlStr;
tmpStr = ReplaceHtml("&#[^>]*;", tmpStr, "");
tmpStr = ReplaceHtml("</?marquee[^>]*>", tmpStr, "");
tmpStr = ReplaceHtml("</?object[^>]*>", tmpStr, "");
tmpStr = ReplaceHtml("</?param[^>]*>", tmpStr, "");
tmpStr = ReplaceHtml("</?embed[^>]*>", tmpStr, "");
tmpStr = ReplaceHtml("</?table[^>]*>", tmpStr, "");
tmpStr = ReplaceHtml(" ", tmpStr, "");
tmpStr = ReplaceHtml("</?tr[^>]*>", tmpStr, "");
tmpStr = ReplaceHtml("</?th[^>]*>", tmpStr, "");
tmpStr = ReplaceHtml("</?p[^>]*>", tmpStr, "");
tmpStr = ReplaceHtml("</?a[^>]*>", tmpStr, "");
tmpStr = ReplaceHtml("</?img[^>]*>", tmpStr, "");
tmpStr = ReplaceHtml("</?tbody[^>]*>", tmpStr, "");
tmpStr = ReplaceHtml("</?li[^>]*>", tmpStr, "");
tmpStr = ReplaceHtml("</?span[^>]*>", tmpStr, "");
tmpStr = ReplaceHtml("</?div[^>]*>", tmpStr, "");
tmpStr = ReplaceHtml("</?th[^>]*>", tmpStr, "");
tmpStr = ReplaceHtml("</?td[^>]*>", tmpStr, "");
tmpStr = ReplaceHtml("</?script[^>]*>", tmpStr, "");
tmpStr = ReplaceHtml("(javascript|jscript|vbscript|vbs):", tmpStr, "");
tmpStr = ReplaceHtml("on(mouse|exit|error|click|key)", tmpStr, "");
tmpStr = ReplaceHtml("<\\?xml[^>]*>", tmpStr, "");
tmpStr = ReplaceHtml("<\\/?[a-z]+:[^>]*>", tmpStr, "");
tmpStr = ReplaceHtml("</?font[^>]*>", tmpStr, "");
tmpStr = ReplaceHtml("</?b[^>]*>", tmpStr, "");
tmpStr = ReplaceHtml("</?u[^>]*>", tmpStr, "");
tmpStr = ReplaceHtml("</?i[^>]*>", tmpStr, "");
tmpStr = ReplaceHtml("</?strong[^>]*>", tmpStr, "");
1. 数据库访问性能优化
数据库的连接和关闭
访问数据库资源需要创建连接、打开连接和关闭连接几个操作。这些过程需要多次与数据库交换信息以通过身份验证，比较耗费服务器资源。ASP.NET中提供了连接池(Connection Pool)改善打开和关闭数据库对性能的影响。系统将用户的数据库连接放在连接池中，需要时取出，关闭 ......
