UBB

1.UBB的保存。直接保存，通过javascript，以UBB格式直接保存在数据库里。关键问题要过滤掉不安全代码。
例如：

        public string Filtrate(string content)
        {
            if(content == null)
                return "";
            content = content.Replace("<"," ");
            content = content.Replace(">"," ");
            return(content);    
        }

2.UBB的显示。

using System;
using System.Text;
using System.Text.RegularExpressions;

namespace UBB
{
    /**//// <summary> 
    /// 功能：UBB代码
    /// 作者：小迪
    /// 日期：2005-3-20
    /// </summary>
    public class UBB
    {
        构造函数#region 构造函数
        public UBB()
        {
            //
            // TODO: 在此处添加构造函数逻辑
            //
        }
        #endregion

        UBBToHTML#region UBBToHTML
        /**//// <summary>
        /// UBB代码处理函数
        /// </summary>
        /// <param name="detail">输入字符串</param>
        /// <returns>输出字符串</returns>
        public string UBBToHTML(string detail)
        {
            Regex r;
            Match m;

            处理[em]标记，处理心情图标#region 处理[em]标记，处理心情图标 
            string EmotPath="BBS/Skins/Default/emot/";        //路径可更改，图片名以em开头
            detail = Regex.Replace(detail,@"\[em(.[^\[]*)\]",@"<img src="+EmotPath+"em$1.gif border=0 align=middle>",RegexOptions.IgnoreCase); 
            #endregion

            处理html标记#region 处理html标记
            detail = detail.Replace("<","&lt;");
            detail = detail.Replace(">","&gt;");
            detail = detail.Replace("'","''"); 
            #endregion            

            处理空格#region 处理空格
            detail = detail.Replace(" ","&nbsp;");
            #endregion        

            处理换行#region 处理换行
            //处理换行，在每个新行的前面添加两个全角空格
            r = new Regex(@"(\r\n((&nbsp;)|　)+)(?<正文>\S+)",RegexOptions.IgnoreCase);
            for (m = r.Match(detail); m.Success; m = m.NextMatch()) 
            {
                detail = detail.Replace(m.Groups[0].ToString(),"<BR>　　" + m.Groups["正文"].ToString());
            }
            //处理换行，在每个新行的前面添加两个全角空格
            detail = detail.Replace("\r\n","<BR>");

            //unknown
//            sDetail = sDetail.Replace("\r\n","<BR><BR>"); 
//            sDetail = sDetail.Replace("\n","<BR>"); 
            #endregion

            处理[b][/b]标记#region 处理[b][/b]标记
            //方法1
            r = new Regex(@"(\[b\])([ \S\t]*?)(\[\/b\])",RegexOptions.IgnoreCase);
            for (m = r.Match(detail); m.Success; m = m.NextMatch()) 
            {
                detail = detail.Replace(m.Groups[0].ToString(),"<B>" + m.Groups[2].ToString() + "</B>");
            }        
            //方法2
//            detail = Regex.Replace(detail,@"\[b\](?<x>[^\]]*)\[/b\]",@"<b>$1</b>",RegexOptions.IgnoreCase); 
            #endregion
        
            处理[i][/i]标记#region 处理[i][/i]标记
            //方法1
            r = new Regex(@"(\[i\])([ \S\t]*?)(\[\/i\])",RegexOptions.IgnoreCase);
            for (m = r.Match(detail); m.Success; m = m.NextMatch()) 
            {
                detail = detail.Replace(m.Groups[0].ToString(),"<I>" + m.Groups[2].ToString() + "</I>");
            }
            //方法2            
//            detail = Regex.Replace(detail,@"\[i\](?<x>[^\]]*)\[/i\]",@"<i>$1</i>",RegexOptions.IgnoreCase);             
            #endregion
        
            处理[U][/U]标记#region 处理[U][/U]标记
            //方法1
            r = new Regex(@"(\[U\])([ \S\t]*?)(\[\/U\])",RegexOptions.IgnoreCase);
            for (m = r.Match(detail); m.Success; m = m.NextMatch()) 
            {
                detail = detail.Replace(m.Groups[0].ToString(),"<U>" + m.Groups[2].ToString() + "</U>");
            }
            //方法2        
//            detail = Regex.Replace(detail,@"\[u\](?<x>[^\]]*)\[/u\]",@"<u>$1</u>",RegexOptions.IgnoreCase);                         
            #endregion
            
            处理[p][/p]标记#region 处理[p][/p]标记        
            r = new Regex(@"((\r\n)*\[p\])(.*?)((\r\n)*\[\/p\])",RegexOptions.IgnoreCase|RegexOptions.Singleline);
            for (m = r.Match(detail); m.Success; m = m.NextMatch()) 
            {
                detail = detail.Replace(m.Groups[0].ToString(),"<P class=\"pstyle\">" + m.Groups[3].ToString() + "</P>");
            }
            #endregion

            处理[div][/div]标记#region 处理[div][/div]标记
            detail = Regex.Replace(detail,@"\[center\](.[^\[]*)\[\/center\]",@"<div align=center>$1</div>",RegexOptions.IgnoreCase);             
            #endregion

            处理[font=xxx][/font]标记#region 处理[font=xxx][/font]标记        
            r = new Regex(@"(\[font=([\S]+)\])([ \S\t]*?)(\[\/font\])",RegexOptions.IgnoreCase);
            for (m = r.Match(detail); m.Success; m = m.NextMatch()) 
            {
                detail = detail.Replace(m.Groups[0].ToString(),
                    "<FONT FACE=" + m.Groups[2].ToString() + ">" + 
                    m.Groups[3].ToString() + "</FONT>");
            }
            #endregion

            处理[size=xxx][/size]标记#region 处理[size=xxx][/size]标记        
            r = new Regex(@"(\[size=([1-7])\])([ \S\t]*?)(\[\/size\])",RegexOptions.IgnoreCase);
            for (m = r.Match(detail); m.Success; m = m.NextMatch()) 
            {
                detail = detail.Replace(m.Groups[0].ToString(),
                    "<FONT SIZE=" + m.Groups[2].ToString() + ">" + 
                    m.Groups[3].ToString() + "</FONT>");
            }
            #endregion

            处理[color=xxx][/color]标记#region 处理[color=xxx][/color]标记            
            r = new Regex(@"(\[color=([\S]+)\])([ \S\t]*?)(\[\/color\])",RegexOptions.IgnoreCase);
            for (m = r.Match(detail); m.Success; m = m.NextMatch()) 
            {
                detail = detail.Replace(m.Groups[0].ToString(),
                    "<FONT COLOR=" + m.Groups[2].ToString() + ">" + 
                    m.Groups[3].ToString() + "</FONT>");
            }
            #endregion

            处理[H=x][/H]标记#region 处理[H=x][/H]标记            
            r = new Regex(@"(\[H=([1-6])\])([ \S\t]*?)(\[\/H\])",RegexOptions.IgnoreCase);
            for (m = r.Match(detail); m.Success; m = m.NextMatch()) 
            {
                detail = detail.Replace(m.Groups[0].ToString(),
                    "<H" + m.Groups[2].ToString() + ">" + 
                    m.Groups[3].ToString() + "</H" + m.Groups[2].ToString() + ">");
            }
            #endregion

            处理[fly][/fly]标记#region 处理[fly][/fly]标记 
            detail = Regex.Replace(detail,@"\[fly\](.[^\[]*)\[\/fly\]",@"<marquee width=90% behavior=alternate scrollamount=3>$1</marquee>",RegexOptions.IgnoreCase); 
            #endregion

            处理[move][/move]标记#region 处理[move][/move]标记 
            detail = Regex.Replace(detail,@"\[move\](.[^\[]*)\[\/move\]",@"<marquee scrollamount=3>$1</marquee>",RegexOptions.IgnoreCase);             
            #endregion

            处理[GLOW][/GLOW]标记#region 处理[GLOW][/GLOW]标记 
            detail = Regex.Replace(detail,@"\[GLOW=*([0-9]*),*(#*[a-z0-9]*),*([0-9]*)\](.[^\[]*)\[\/GLOW\]",@"<div style=""width:$1px;filter:glow(color=$2, strength=$3)"">$4</div>",RegexOptions.IgnoreCase); 
            #endregion

            处理[SHADOW][/SHADOW]标记#region 处理[SHADOW][/SHADOW]标记 
            detail = Regex.Replace(detail,@"\[SHADOW=*([0-9]*),*(#*[a-z0-9]*),*([0-9]*)\](.[^\[]*)\[\/SHADOW\]",@"<div style=""width:$1px;filter:shadow(color=$2, strength=$3)"">$4</div>",RegexOptions.IgnoreCase); 
            #endregion

            处理[sup][/sup]标记#region 处理[sup][/sup]标记            
            r = new Regex(@"(\[sup\])([ \S\t]*?)(\[\/sup\])",RegexOptions.IgnoreCase);
            for (m = r.Match(detail); m.Success; m = m.NextMatch()) 
            {
                detail = detail.Replace(m.Groups[0].ToString(),"<SUP>" + m.Groups[2].ToString() + "</SUP>");
            }
            #endregion

            处理[sub][/sub]标记#region 处理[sub][/sub]标记            
            r = new Regex(@"(\[sub\])([ \S\t]*?)(\[\/sub\])",RegexOptions.IgnoreCase);
            for (m = r.Match(detail); m.Success; m = m.NextMatch()) 
            {
                detail = detail.Replace(m.Groups[0].ToString(),"<SUB>" + m.Groups[2].ToString() + "</SUB>");
            }
            #endregion
        
            处理[IMG][/IMG]标记#region 处理[IMG][/IMG]标记
            detail = Regex.Replace(detail,@"\[IMG\](?<x>[^\]]*)\[\/IMG\]",@"<IMG SRC=""$1"" border=0>",RegexOptions.IgnoreCase); 
            #endregion

            处理[picture][/picture]标记，处理图片链接#region 处理[picture][/picture]标记，处理图片链接            
            r = new Regex("\\[picture\\](\\d+?)\\[\\/picture\\]",RegexOptions.IgnoreCase);
            for (m = r.Match(detail); m.Success; m = m.NextMatch()) 
            {
                detail = detail.Replace(m.Groups[0].ToString(),
                    "<A href=\"ShowImage.aspx?Type=ALL&Action=forumImage&ImageID=" + m.Groups[1].ToString() +
                    "\" target=\"_blank\"><IMG border=0 Title=\"点击打开新窗口查看\" src=\"ShowImage.aspx?Action=forumImage&ImageID=" + m.Groups[1].ToString() +
                    "\"></A>");
            }
            #endregion

            处理[flash][/flash]标记#region 处理[flash][/flash]标记
            detail = Regex.Replace(detail,@"\[flash\](?<x>[^\]]*)\[\/flash\]",@"<a href=""$1"" TARGET=_blank><IMG SRC=bbs/skins/default/filetype/swf.gif border=0 alt=点击开新窗口欣赏该FLASH动画! height=16 width=16>[全屏欣赏]</a><br/><OBJECT align=middle codeBase=http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=4,0,2,0 classid=clsid:D27CDB6E-AE6D-11cf-96B8-444553540000 width=500 height=400><PARAM NAME=movie VALUE=""$1""><PARAM NAME=quality VALUE=high><embed src=""$1"" quality=high pluginspage='http://www.macromedia.com/shockwave/download/index.cgi?P1_Prod_Version=ShockwaveFlash' type='application/x-shockwave-flash' width=500 height=400>$1</embed></OBJECT>",RegexOptions.IgnoreCase); 
            #endregion

            处理[flash=x,y][/flash]标记，自定义大小#region 处理[flash=x,y][/flash]标记，自定义大小 
            detail = Regex.Replace(detail,@"\[flash=*([0-9]*),*([0-9]*)\](?<x>[^\]]*)\[\/flash\]",@"<a href=""$3"" TARGET=_blank><IMG SRC=bbs/skins/default/filetype/swf.gif border=0 alt=点击开新窗口欣赏该FLASH动画! height=16 width=16>[全屏欣赏]</a><br/><OBJECT align=middle  codeBase=http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=4,0,2,0 classid=clsid:D27CDB6E-AE6D-11cf-96B8-444553540000 width=$1 height=$2><PARAM NAME=movie VALUE=""$3""><PARAM NAME=quality VALUE=high><embed src=""$3"" quality=high pluginspage='http://www.macromedia.com/shockwave/download/index.cgi?P1_Prod_Version=ShockwaveFlash' type='application/x-shockwave-flash' width=$1 height=$2>$3</embed></OBJECT>",RegexOptions.IgnoreCase); 
            #endregion

            处理[sound][/sound]标记#region 处理[sound][/sound]标记
            detail = Regex.Replace(detail,@"\[sound\](.[^\[]*)\[\/sound\]",@"<a href=""$1"" target=_blank><IMG SRC=bbs/skins/default/filetype/mid.gif border=0 alt=""背景音乐""></a><bgsound src=""$1"" loop=""-1"">",RegexOptions.IgnoreCase); 
            #endregion

            处理[mp=x,y][/mp]标记            Dv7 MediaPlayer自定义手动播放模式；#region 处理[mp=x,y][/mp]标记        Dv7 MediaPlayer自定义手动播放模式； 
            detail = Regex.Replace(detail,@"\[mp=*([0-9]*),*([0-9]*)\](?<x>[^\]]*)\[\/mp\]",@"<object align=middle classid=CLSID:22d6f312-b0f6-11d0-94ab-0080c74c7e95 class=OBJECT id=MediaPlayer width=$1 height=$2 ><param name=ShowStatusBar value=-1><param name=Filename value=$3><embed type=application/x-oleobject codebase=http://activex.microsoft.com/activex/controls/mplayer/en/nsmp2inf.cab#Version=5,1,52,701 flename=mp src=$4 width=$1 height=$2></embed></object>",RegexOptions.IgnoreCase); 
            #endregion

            处理[mp=x,y,z][/mp]标记            Dv7 MediaPlayer自定义自动播放模式；#region 处理[mp=x,y,z][/mp]标记        Dv7 MediaPlayer自定义自动播放模式； 
            detail = Regex.Replace(detail,@"\[mp=*([0-9]*),*([0-9]*),*([0|1|true|false]*)\](?<x>[^\]]*)\[\/mp\]",@"<object align=middle classid=CLSID:22d6f312-b0f6-11d0-94ab-0080c74c7e95 class=OBJECT id=MediaPlayer width=$1 height=$2 ><PARAM NAME=AUTOSTART VALUE=$3 ><param name=ShowStatusBar value=-1><param name=Filename value=$4><embed type=application/x-oleobject codebase=http://activex.microsoft.com/activex/controls/mplayer/en/nsmp2inf.cab#Version=5,1,52,701 flename=mp src=$4 width=$1 height=$2></embed></object>",RegexOptions.IgnoreCase); 
            #endregion

            处理[rm=x,y][/rm]标记            realplay视频文件#region 处理[rm=x,y][/rm]标记        realplay视频文件 
            detail = Regex.Replace(detail,@"\[rm=*([0-9]*),*([0-9]*)\](.[^\[]*)\[\/rm\]",@"<OBJECT align=middle  classid=clsid:CFCDAA03-8BE4-11cf-B84B-0020AFBBCCFA class=OBJECT id=RAOCX width=$1 height=$2><PARAM NAME=SRC VALUE=$3><PARAM NAME=CONSOLE VALUE=Clip1><PARAM NAME=CONTROLS VALUE=imagewindow><PARAM NAME=AUTOSTART VALUE=true></OBJECT><br/><OBJECT classid=CLSID:CFCDAA03-8BE4-11CF-B84B-0020AFBBCCFA height=32 id=video2 width=$1><PARAM NAME=SRC VALUE=$3><PARAM NAME=AUTOSTART VALUE=-1><PARAM NAME=CONTROLS VALUE=controlpanel><PARAM NAME=CONSOLE VALUE=Clip1></OBJECT>",RegexOptions.IgnoreCase); 
            #endregion

            处理[rm=x,y,z][/rm]标记            realplay视频文件#region 处理[rm=x,y,z][/rm]标记        realplay视频文件 
            detail = Regex.Replace(detail,@"\[rm=*([0-9]*),*([0-9]*),*([0|1|true|false]*)\](.[^\[]*)\[\/rm\]",@"<OBJECT align=middle  classid=clsid:CFCDAA03-8BE4-11cf-B84B-0020AFBBCCFA class=OBJECT id=RAOCX width=$1 height=$2><PARAM NAME=SRC VALUE=$4><PARAM NAME=CONSOLE VALUE=""Clip""><PARAM NAME=CONTROLS VALUE=imagewindow><PARAM NAME=AUTOSTART VALUE=$3 ></OBJECT><br/><OBJECT classid=CLSID:CFCDAA03-8BE4-11CF-B84B-0020AFBBCCFA height=32 id=video2 width=$1><PARAM NAME=SRC VALUE=$4><PARAM NAME=AUTOSTART VALUE=$3><PARAM NAME=CONTROLS VALUE=controlpanel><PARAM NAME=CONSOLE VALUE=""Clip""></OBJECT>",RegexOptions.IgnoreCase); 
            #endregion

            处理[QT=x,y][/QT]标记            QuickTime视频文件#region 处理[QT=x,y][/QT]标记        QuickTime视频文件 
            detail = Regex.Replace(detail,@"\[QT=*([0-9]*),*([0-9]*)\](?<x>[^\]]*)\[\/QT\]",@"<embed src=$3 width=$1 height=$2 autoplay=true loop=false controller=true playeveryframe=false cache=false scale=TOFIT bgcolor=#000000 kioskmode=false targetcache=false pluginspage=http://www.apple.com/quicktime/>",RegexOptions.IgnoreCase); 
            #endregion
                        
            处理[list=xxx][/list]标记#region 处理[list=xxx][/list]标记            
            r = new Regex(@"(\[list(=(A|a|I|i| ))?\]([ \S\t]*)\r\n)((\[\*\]([ \S\t]*\r\n))*?)(\[\/list\])",RegexOptions.IgnoreCase);
            for (m = r.Match(detail); m.Success; m = m.NextMatch()) 
            {
                string strLI = m.Groups[5].ToString();
                Regex rLI = new Regex(@"\[\*\]([ \S\t]*\r\n?)",RegexOptions.IgnoreCase);
                Match mLI;
                for (mLI = rLI.Match(strLI); mLI.Success; mLI = mLI.NextMatch()) 
                {
                    strLI = strLI.Replace(mLI.Groups[0].ToString(),"<LI>" + mLI.Groups[1]);
                }
                detail = detail.Replace(m.Groups[0].ToString(),
                    "<UL TYPE=\"" + m.Groups[3].ToString() + "\"><B>" + m.Groups[4].ToString() + "</B>" + 
                    strLI + "</UL>");
            }
            //unknown
//            detail = Regex.Replace(detail,@"\[list\](?<x>[^\]]*)\[/list\]",@"<ul>$1</ul>",RegexOptions.IgnoreCase); 
//            detail = Regex.Replace(detail,@"\[list=1\](?<x>[^\]]*)\[/list\]",@"<ol type=1>$1</ol id=1>",RegexOptions.IgnoreCase);         
//            detail = Regex.Replace(detail,@"\[list=a\](?<x>[^\]]*)\[/list\]",@"<ol type=a>$1</ol id=a>",RegexOptions.IgnoreCase);             
//            detail = Regex.Replace(detail,@"\[\*\](?<x>[^\]]*)\[/\*\]",@"<li>$1</li>",RegexOptions.IgnoreCase); 
            #endregion            

            处理[center][/center]标记#region 处理[center][/center]标记 
            detail = Regex.Replace(detail,@"\[center\](?<x>[^\]]*)\[\/center\]",@"<div align=center>$1</div>",RegexOptions.IgnoreCase); 
            #endregion

            处理[align=xxx][/align]标记#region 处理[align=xxx][/align]标记
            r = new Regex(@"(\[align=([\S]+)\])([ \S\t]*?)(\[\/align\])",RegexOptions.IgnoreCase);
            for (m = r.Match(detail); m.Success; m = m.NextMatch()) 
            {
                detail = detail.Replace(m.Groups[0].ToString(),
                    "<P align=" + m.Groups[2].ToString() + ">" + 
                    m.Groups[3].ToString() + "</P>");
            }
            #endregion

            处理[url][/url]标记#region 处理[url][/url]标记        
            //方法1
            r = new Regex(@"(\[url\])([ \S\t]*?)(\[\/url\])",RegexOptions.IgnoreCase);
            for (m = r.Match(detail); m.Success; m = m.NextMatch()) 
            {
                detail = detail.Replace(m.Groups[0].ToString(),
                    "<A href=\"" + m.Groups[2].ToString() + "\" target=\"_blank\"><IMG border=0 src=\"images/url.gif\">" +
                    m.Groups[2].ToString() + "</A>");
            }
            //方法2 
//            detail = Regex.Replace(detail,@"\[URL\](?<x>[^\]]*)\[\/URL\]",@"<a href=$1 target=_blank>$1</a>",RegexOptions.IgnoreCase);             
            #endregion

            处理[url=xxx][/url]标记#region 处理[url=xxx][/url]标记
            //方法1
            r = new Regex(@"(\[url=([ \S\t]+)\])([ \S\t]*?)(\[\/url\])",RegexOptions.IgnoreCase);
            for (m = r.Match(detail); m.Success; m = m.NextMatch()) 
            {
                detail = detail.Replace(m.Groups[0].ToString(),
                    "<A href=\"" + m.Groups[2].ToString() + "\" target=\"_blank\"><IMG border=0 src=\"images/url.gif\">" +
                    m.Groups[3].ToString() + "</A>");
            }
            //方法2 
//            detail = Regex.Replace(detail,@"\[URL=(?<x>[^\]]*)\](?<y>[^\]]*)\[\/URL\]",@"<a href=$1 target=_blank>$2</a>",RegexOptions.IgnoreCase);             
            #endregion


            处理[email][/email]标记#region 处理[email][/email]标记    
            //方法1
            r = new Regex(@"(\[email\])([ \S\t]*?)(\[\/email\])",RegexOptions.IgnoreCase);
            for (m = r.Match(detail); m.Success; m = m.NextMatch()) 
            {
                detail = detail.Replace(m.Groups[0].ToString(),
                    "<A href=\"mailto:" + m.Groups[2].ToString() + "\" target=\"_blank\"><IMG border=0 src=\"images/email.gif\">" +
                    m.Groups[2].ToString() + "</A>");
            }
            //方法2  
//            detail = Regex.Replace(detail,@"\[EMAIL\](?<x>[^\]]*)\[\/EMAIL\]",@"<img align=middle src=bbs/skins/default/email1.gif><A HREF=""mailto:$1"">$1</A>",RegexOptions.IgnoreCase);             
            #endregion

            处理[email=xxx][/email]标记#region 处理[email=xxx][/email]标记
            //方法1
            r = new Regex(@"(\[email=([ \S\t]+)\])([ \S\t]*?)(\[\/email\])",RegexOptions.IgnoreCase);
            for (m = r.Match(detail); m.Success; m = m.NextMatch()) 
            {
                detail = detail.Replace(m.Groups[0].ToString(),
                    "<A href=\"mailto:" + m.Groups[2].ToString() + "\" target=\"_blank\"><IMG border=0 src=\"images/email.gif\">" +
                    m.Groups[3].ToString() + "</A>");
            }
            //方法2
//            detail = Regex.Replace(detail,@"\[EMAIL=(\S+\@.[^\[]*)\](?<y>[^\]]*)\[\/EMAIL\]",@"<img align=middle src=bbs/skins/default/email1.gif><A HREF=""mailto:$1"" TARGET=_blank>$2</A>",RegexOptions.IgnoreCase);             
            #endregion

            处理[quote][/quote]标记#region 处理[quote][/quote]标记
            detail = Regex.Replace(detail,@"\[quote](?<x>.*)\[/quote]",@"<center>—— 以下是引用 ——<table border='1' width='80%' cellpadding='10' cellspacing='0'><tr><td>$1</td></tr></table></center>",RegexOptions.IgnoreCase);             
            #endregion

            处理[code][/code]标记#region 处理[code][/code]标记
            detail = Regex.Replace(detail,@"\[code\](?<x>[^\]]*)\[/code\]",@"<table width=""100%"" border=""0"" cellspacing=""0"" cellpadding=""6""><td><b>以下内容为程序代码:</b><br/>$1</td></table>",RegexOptions.IgnoreCase); 
            #endregion

            处理[HTML][/HTML]标记#region 处理[HTML][/HTML]标记
            detail = Regex.Replace(detail,@"\[HTML\](?<x>[^\]]*)\[\/HTML\]",@"table width=""100%"" border=""0"" cellspacing=""0"" cellpadding=""6""><td><b>以下内容为程序代码:</b><br/>$1</td></table>",RegexOptions.IgnoreCase); 
            #endregion

            处理[DIR=x,y][/DIR]#region 处理[DIR=x,y][/DIR] 
            detail = Regex.Replace(detail,@"\[DIR=*([0-9]*),*([0-9]*)\](?<x>[^\]]*)\[\/DIR\]",@"<object classid=clsid:166B1BCA-3F9C-11CF-8075-444553540000 codebase=http://download.macromedia.com/pub/shockwave/cabs/director/sw.cab#version=7,0,2,0 width=$1 height=$2><param name=src value=$3><embed src=$3 pluginspage=http://www.macromedia.com/shockwave/download/ width=$1 height=$2></embed></object>",RegexOptions.IgnoreCase); 
            #endregion
            


            return detail;
//            return "<P Style=\"FONT-FAMILY: 宋体;LINE-HEIGHT: 13pt;word-wrap:break-word;\">" + sDetail + "</P>"; 

        }
        #endregion
    }
}

补:

                处理[upload]标记，处理上传图片#region 处理[upload]标记，处理上传图片  
                string UpLoadPath="UpLoadPic/";        //路径可更改，图片名以upload_开头 
                detail = Regex.Replace(detail,@"\[upload_(.[^\[]*)\]",@"<img src="+UpLoadPath+"upload_$1 border=0 align=middle>",RegexOptions.IgnoreCase);  
                #endregion 

其实是上传任何文件，如果只要传图片，则可以在程序中加以控制（如，控制后缀名）

改进：

    处理[upload]标记，处理上传图片#region 处理[upload]标记，处理上传图片   
            string UpLoadPath="UpLoadPic/";        //路径可更改，图片名以upload_开头              
            detail = Regex.Replace(detail,@"\[upload_(.[^\[]*)_(\d{1,2}|[1-2]\d{2}|3[0-1]\d|320)_([\d]+)\.(\w+)\]",@"<a href='" + UpLoadPath + "upload_$1_$2_$3.$4'><img src="+UpLoadPath+"upload_$1_$2_$3.$4 border=0 align=middle></a>",RegexOptions.IgnoreCase);   
            detail = Regex.Replace(detail,@"\[upload_(.[^\[]*)_(3[2-9]\d|[4-9]\d{2}|\d{4,})_([\d]+)\.(\w+)\]",@"<a href='" + UpLoadPath + "upload_$1_$2_$3.$4'><img src="+UpLoadPath+"upload_$1_$2_$3.$4 border=0 align=middle width=320></a>",RegexOptions.IgnoreCase);   
            #endregion 

 

相关文件：

        private void ibtnUpLoad_Click(object sender, System.Web.UI.ImageClickEventArgs e)
        {
            if(upLoadFile.PostedFile.ContentLength > 524288)
            {
                this.Response.Write("<script>alert('图片请控制在500K以内！谢谢')</script>");
                return;

            }

            HttpPostedFile hpPFile = upLoadFile.PostedFile;    
            string localFile = hpPFile.FileName;

            //设置路径
            string strFolderName=Server.MapPath("UpLoadPic");
            //取得文件类型（后缀名）
            char[] separator2 = {'.'};        //separator的值为"\"
            string[] temp2  = localFile.Split(separator2);
            string strFileType  = temp2[temp2.Length-1];
            
            //取得文件名(不含路径)
            char separator3 = '.';
            string strTemp  = localFile.Substring(0,localFile.LastIndexOf(separator3)-1);
            char[] separator = {'\\'};        //separator的值为"\"
            string[] temp  = strTemp.Split(separator);
            string strFileName  = temp[temp.Length-1];            

            System.IO.FileStream fs = new FileStream(localFile,FileMode.Open);
            Bitmap bit = new Bitmap(fs);
            int picWidth = bit.Width;
            int picHeight = bit.Height;
            fs.Close();

            string FileName = strFolderName + "\\upload_" + strFileName + "_" + picWidth + "_" + picHeight + "." + strFileType;
                
            if(strFileType.ToLower() == "gif" || strFileType.ToLower() == "jpg")
            {
                try
                {
                    hpPFile.SaveAs(FileName);            
                    content.Value += "[upload_" + strFileName + "_" + picWidth + "_" + picHeight + "." + strFileType + "]";                    
                    this.Response.Write("<script>alert('上传成功！')</script>");
                }
                catch
                {
                    this.Response.Write("<script>alert('上传失败!请重试！')</script>");
                }
                
            }
            else
            {
                this.Response.Write("<script>alert('请选择有效的图片文件，目前只支持.gif和.jpg格式的图片！')</script>");
                
            }
                
        }