re="\[img\](.*?)\[\/img\]";
content=REReplaceNoCase(content,re,'<a href="\1" target="_blank" title="new Window"><img src="\1" border="0"></a>',"all";

这种看不明白，如果是要在修改时想把<img src="http://www.5d.cn/xxx.jpg">换成应怎么写？

我以经做了很多改变，比这个完美多了，
不过不贴出来！反应不热列！

<cfscript>
/**
*
*/
function HTMLFormat(text){
var content = text;
content = Replace(content, Chr(38), '&amp;', 'all');
content = Replace(content, Chr(60), '&lt;', 'all');
content = Replace(content, Chr(62), '&gt;', 'all');
content = Replace(content, Chr(34), '&quot;', 'all');
content = Replace(content, Chr(32), '&nbsp;', 'all');
content = Replace(content, Chr(13)&Chr(10), '<br>', 'all');
return content;
}

function rep(text,regular,substring){
return (REReplaceNoCase(text,regular,substring,'all'));
}

function UBBFormat(text){
var tag = '';
var what = '';
var re = '';
var content = HTMLFormat(text);

tag = StructNew();
tag.img = '<img src="\2\3" border="0">';
tag.w = '<iframe frameborder="1" align="center" scrolling="yes" src="\2\3" width="100%" height="400" marginheight="0" marginwidth="0"></iframe><br>页面:<a href="\2\3" target="_blank">点这儿参观</a>';
tag.f = '<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab##version=6,0,29,0" width="500" height="300"><param name="movie" value="\2\3"><param name="quality" value="high"><embed src="\2\3" quality="high" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" width="400" height="225"></embed></object>';
tag.url = '<a href="\2\3" target="_blank">\2\3</a>';
for(what in tag){
re = '(\[#what#\])(http|ftp|https)(\:\/\/.+?)(\[\/#what#\])';
    content = rep(content,re,tag[what]);
}

tag = StructNew();
tag.url = '<a href="\2\3" target="_blank">\5</a>';
tag.download = '<img src="images/download.gif"><a href="\2\3">\5</a>';
for(what in tag){
re = '(\[#what#\=)(http|ftp|https)(\:\/\/.+?)(\])(.+?)(\[\/#what#\])';
    content = rep(content,re,tag[what]);
}

tag = StructNew();
tag.b = '<b>\2</b>';
tag.i = '<i>\2</i>';
tag.u = '<u>\2</u>';
tag.sup = '^\2';
tag.sub = '_\2';
tag.list = '<ul>\2</ul>';
tag.code = '<div style="border:1px solid ##999999;"><pre>\2</pre></div>';
tag.center = '<div align="center">\2</div>';
tag.right = '<div align="right">\2</div>';
tag.url = '<a href="http://\2" target="_blank">\2</a>';
for(what in tag){
re = '(\[#what#\])(.+?)(\[\/#what#\])';
    content = rep(content,re,tag[what]);
}

tag = StructNew();
tag.color = '<font color="\2">\4</font>';
tag.font = '<font face="\2">\4</font>';
tag.url = '<a href="http://\2" target="_blank">\4</a>';
for(what in tag){
re = '(\[#what#\=)(.+?)(\])(.+?)(\[\/#what#\])';
    content = rep(content,re,tag[what]);
}

re = '(^|&nbsp;)(http|ftp|https)(:\/\/\w+([\.\~\-\/]\w+)+)';
content = rep(content, re, '\1<a href="\2\3" target="_blank">\2\3</a>');
re = '(^|&nbsp;)(www([\.\~\-\/]\w+)+)';
content = rep(content, re, '\1<a href="\2" target="_blank">\2</a>');

re = '(\[email\])([^\[]+?@[^\[]+?)(\[\/email\])';
content = rep(content, re, '<a href="mailto:\2">\2</a>');
re = '(\[email\=)(.+?@.+?)(\])(.+?)(\[\/email\])';
content = rep(content, re , '<a href="mailto:\2">\4</a>');

re = '(\[list=)(a|1|i)(\])(.+?)(\[\/list\])';
content = rep(content, re, '<ol type="\2">\4</ol>');
re = '(\[\*\])';
content = rep(content, re, '<li>');

re = '(\[h)([1-6])(\])(.+?)(\[\/h)(\2)(\])';
content = rep(content, re, '<h\2>\4</h\2>');

re = '(\[size=)([\+-]?[1-7])(\])(.+?)(\[\/size\])';
content = rep(content, re, '<font size="\2">\4</font>');

re = '(\[f&nbsp;w=)(\d{1,3})(&nbsp;h=)(\d{1,3})(\])(http|ftp|https)(\:\/\/.+?)(\[\/f\])';
content = rep(content, re, '<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab##version=6,0,29,0" width="\2" height="\4"><param name="movie" value="\6\7"><param name="quality" value="high"><embed src="\6\7" quality="high" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" width="\2" height="\4"></embed></object>');

re = '(\[quote\])(.+?)(\[\/quote\])';
while(REFind(re, content) NEQ 0){
content = rep(content, re, '<blockquote>引用:<hr>\2<hr></blockquote>');
}
return content;
}
</cfscript>