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How to implement regular expression judgment to retain 2 decimal places

php中世界最好的语言
php中世界最好的语言Original
2018-03-29 13:53:474193browse

这次给大家带来正则表达式怎样实现保留2位小数的判定，正则表达式实现保留2位小数判定的注意事项有哪些，下面就是实战案例，一起来看一下。

废话不多说了，直接给大家贴代码了，具体代码如下所示：

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<script type="text/javascript" src="js/jquery.min.js" ></script>
</head>
<body>
<li><a class="ba">6.88888888</a></li>
<script>
var b=$('.ba').html();
onload = function(){   
var a = b;
  var aNew;
  var re = /([0-9]+\.[0-9]{2})[0-9]*/;
  aNew = a.replace(re,"$1");
  $(".ba").html(aNew)
 } 
</script>
</body>
</html>

相信看了本文案例你已经掌握了方法，更多精彩请关注php中文网其它相关文章！

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