<script type="text/javascript">
onload = function(){
var a = "23.456322";
var aNew;
var re = /([0-9]+\.[0-9]{2})[0-9]*/;
aNew = a.replace(re,"$1");
alert(aNew);
}
</script>
正则取小数点后面几位
标签：www. function ext fun cti tps on() $1 new
原文地址：https://www.cnblogs.com/liyuspace/p/9886293.html
