<script type="text/javascript">
const str = '1000000000';
const r = str.replace(/(?=\B(\d{3})+$)/g,',')
console.log(r);
</script>
网友回复
我知道答案，我要回答
私活外包
<script type="text/javascript">
const str = '1000000000';
const r = str.replace(/(?=\B(\d{3})+$)/g,',')
console.log(r);
</script>
网友回复
