< !--使用正则表达式，借用两个特殊符号"♂""♀"-->
< script language="javascript">
var html="<html><head><title>新建网页</title></head><body><p><img border='0' src='file://Fileserver/Edu/kqnkx/asdf.gif' width='160' height='100'></p><table border='1' cellpadding='0' cellspacing='0' style='border-collapse: collapse' bordercolor='#111111' width='100%'><tr><td width='100%'><a href='http://expert.csdn.net/Expert/TopicView1.asp?id=1987654' target='_blank'>[高分求教]急需HTML转TEXT的源代码,除了IMG标记外,去掉其他所有的HTML标记(项目时间太紧,周5必须做完,请大家尽量帮忙!!!)</a>AXQ</td></tr></table><p><img border='0' src='file://Fileserver/Edu/kqnkx/asdf.gif' width='160' height='100'></p><p><a href='http://expert.csdn.net/Expert/TopicView1.asp?id=1987654' target='_blank'>[高分求教]急需HTML转TEXT的源代码,除了IMG标记外,去掉其他所有的HTML标记(项目时间太紧,周5必须做完,请大家尽量帮忙!!!)</a>AXQ</p><p><img border='0' src='file://Fileserver/Edu/kqnkx/asdfasdf.gif' width='160' height='100'></p><table border='1' cellpadding='0' cellspacing='0' style='border-collapse: collapse' bordercolor='#111111' width='100%'><tr><td width='33%'></td><td width='33%'></td><td width='34%'></td></tr><tr><td width='33%'></td><td width='33%'></td><td width='34%'></td></tr></table></body></html>";

alert(html);                                ///这是个示例字符串
html = html.replace(/<img/g,"♂");         ///替换"<img"
html = html.replace(/(♂[^>]*)>/g,"♀");  ///替换">"
alert(html);
html = html.replace(/<[^>]*>/g,"");        ///过滤其它所有"<...>"标签
alert(html);
html = html.replace(/♂/g,"<img");          ///还原"<img"
html = html.replace(/♀/g,">");             ///还原">"
alert(html);
< /script>