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分享请教这样的代码，正则表达式如何发挥威力啊？
以下代码我想用正则表达式去掉表格代码，不含图片的表格想去掉，里面含有图片的表格想留下来，正则表达式如何写呢？向大家请教，万分感谢
<table width="100%" height="192" border="0" cellpadding="0" cellspacing="0">
<tr>
<td>a</td>
<td>b</td>
<td>c<img src=a.jpg></td>
<td>d</td>
<td>e</td>
<td>f</td>
</tr>
</table>
<table width="100%" height="90" border="0" cellpadding="0" cellspacing="0">
<tr>
<td>d</td>
<td>e</td>
<td>f</td>
</tr>
</table>
<table width="100%" height="192" border="0" cellpadding="0" cellspacing="0">
<tr>
<td>a</td>
<td>b</td>
<td>c<img src=a.jpg></td>
<td>d</td>
<td>e</td>
<td>f</td>
</tr>
</table>
<table width="100%" height="90" border="0" cellpadding="0" cellspacing="0">
<tr>
<td>d</td>
<td>e</td>
<td>f</td>
</tr>
</table>
...全文
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GDPudding 2006-05-15
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果然不给分......
GDPudding 2006-05-10
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这是javascript的,lz要用asp的话自己转化过去
以下是html下的测试代码
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>我晕的测试正则</title>
</head>
<script language="javascript">
function change()
{
var text=document.getElementById("a").value;
var pattern=/<table(?:[^>][\s\S])*>(?:(?!<img)[\s\S])*<\/table(?:[^<]\s)*>/g;//只要对比一次
var text2=text.replace(pattern,"");
document.getElementById("a").value=text2;
}
</script>
<textarea name="a" cols="100" rows="25" id="a"></textarea>
<input type="button" name="Submit" value="替换" onClick="change()" />
</body>
</html>
所用到的正则式
/<table(?:[^>][\s\S])*>(?:(?!<img)[\s\S])*<\/table(?:[^<]\s)*>/g
重点:(?!pattern) //负向预查
以下是html下的测试代码
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>我晕的测试正则</title>
</head>
<script language="javascript">
function change()
{
var text=document.getElementById("a").value;
var pattern=/<table(?:[^>][\s\S])*>(?:(?!<img)[\s\S])*<\/table(?:[^<]\s)*>/g;//只要对比一次
var text2=text.replace(pattern,"");
document.getElementById("a").value=text2;
}
</script>
<textarea name="a" cols="100" rows="25" id="a"></textarea>
<input type="button" name="Submit" value="替换" onClick="change()" />
</body>
</html>
所用到的正则式
/<table(?:[^>][\s\S])*>(?:(?!<img)[\s\S])*<\/table(?:[^<]\s)*>/g
重点:(?!pattern) //负向预查
helloha2013 2006-05-09
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居然不给分，太不爽了。连我多看不下去了！！！！！
patchclass 2005-12-26
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才发现只有30分，楼主不能给多点啊，郁闷一把，不玩了
patchclass 2005-12-26
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突然来了兴趣，写了40分钟呢，嗨，测试通过
<script language="JavaScript">
<!--
function cls()
{
var s="";
re=/(<table[^>]*?>[\s\S]*?<\/table>)/igm;
var arr;
while ((arr = re.exec(aa.value)) != null)
{
//
tmp = RegExp.$1;
alert(tmp)
if ( tmp.match(/<img[^>]*?>/)!=null)
{
s += tmp;
}
}
bb.value=s;
}
//-->
</script>
</head>
<body>
<textarea name="aa" rows="10" cols="100">
<table width="100%" height="90" border="0" cellpadding="0" cellspacing="0">
<tr>
<td>d</td>
<td>e</td>
<td>f</td>
</tr>
</table>
<table width="100%" height="90" border="0" cellpadding="0" cellspacing="0">
<tr>
<td>d</td>
<td>e</td>
<td>f</td>
</tr>
</table>
<table width="100%" height="192" border="0" cellpadding="0" cellspacing="0">
<tr>
<td>a</td>
<td>b</td>
<td>c<img src=a.jpg></td>
<td>d</td>
<td>e</td>
<td>f</td>
</tr>
</table>
<table width="100%" height="90" border="0" cellpadding="0" cellspacing="0">
<tr>
<td>d</td>
<td>e</td>
<td>f</td>
</tr>
</table>
<table width="100%" height="90" border="0" cellpadding="0" cellspacing="0">
<tr>
<td>d</td>
<td>e</td>
<td>f</td>
</tr>
</table>
<table width="100%" height="192" border="0" cellpadding="0" cellspacing="0">
<tr>
<td>a</td>
<td>b</td>
<td>c<img src=a.jpg></td>
<td>d</td>
<td>e</td>
<td>f</td>
</tr>
</table>
</textarea>
<textarea name="bb" rows="10" cols="100"></textarea><input type="button" value="hhh" onclick="cls();">
</body>
<script language="JavaScript">
<!--
function cls()
{
var s="";
re=/(<table[^>]*?>[\s\S]*?<\/table>)/igm;
var arr;
while ((arr = re.exec(aa.value)) != null)
{
//
tmp = RegExp.$1;
alert(tmp)
if ( tmp.match(/<img[^>]*?>/)!=null)
{
s += tmp;
}
}
bb.value=s;
}
//-->
</script>
</head>
<body>
<textarea name="aa" rows="10" cols="100">
<table width="100%" height="90" border="0" cellpadding="0" cellspacing="0">
<tr>
<td>d</td>
<td>e</td>
<td>f</td>
</tr>
</table>
<table width="100%" height="90" border="0" cellpadding="0" cellspacing="0">
<tr>
<td>d</td>
<td>e</td>
<td>f</td>
</tr>
</table>
<table width="100%" height="192" border="0" cellpadding="0" cellspacing="0">
<tr>
<td>a</td>
<td>b</td>
<td>c<img src=a.jpg></td>
<td>d</td>
<td>e</td>
<td>f</td>
</tr>
</table>
<table width="100%" height="90" border="0" cellpadding="0" cellspacing="0">
<tr>
<td>d</td>
<td>e</td>
<td>f</td>
</tr>
</table>
<table width="100%" height="90" border="0" cellpadding="0" cellspacing="0">
<tr>
<td>d</td>
<td>e</td>
<td>f</td>
</tr>
</table>
<table width="100%" height="192" border="0" cellpadding="0" cellspacing="0">
<tr>
<td>a</td>
<td>b</td>
<td>c<img src=a.jpg></td>
<td>d</td>
<td>e</td>
<td>f</td>
</tr>
</table>
</textarea>
<textarea name="bb" rows="10" cols="100"></textarea><input type="button" value="hhh" onclick="cls();">
</body>
mtide 2005-12-25
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<table(任何字符)>(任何字符)<img(任何字符)</table>
超级大笨狼 2005-12-25
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同意新郎官liuxiaoyi666(MSMVP小猪妹马甲之八卦兔子) 的话
笨笨兔兔兔兔兔 2005-12-25
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一定用正则么??如果用dom的话很简单的
