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<script src="https://cdn.staticfile.org/jquery/2.2.4/jquery.min.js"></script>
<p class="ba">6.88888888</p>
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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)
}
输入 CSS 代码……