<script>var a='http://myserver/list.asp?Placeid=3&CategoryId=5&ChannelId=6'
var b="10"
alert(a.replace(/(Placeid=)(.*?)(&|$)/i,"$1"+b+"$3"))var a='http://myserver/list.asp?Placeid=3'
var b="10"
alert(a.replace(/(Placeid=)(.*?)(&|$)/i,"$1"+b+"$3"))
</script>
var b="10"
alert(a.replace(/(Placeid=)(.*?)(&|$)/i,"$1"+b+"$3"))var a='http://myserver/list.asp?Placeid=3'
var b="10"
alert(a.replace(/(Placeid=)(.*?)(&|$)/i,"$1"+b+"$3"))
</script>
解决方案 »
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