<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title>Document</title></head><body><div id="last3Month">12345555554</div><br><div id="lastMonth"></div><br><div id="lastWeek"></div><script>window.onload = function(){ var last3Month = document.getElementById(‘last3Month‘).innerHTML; document.getElementById(‘lastMonth‘).innerHTML = getThousandNum(last3Month);}
//千分位加逗号function getThousandNum(val){ var reg = /(?=(?!(\b))(\d{3})+$)/g; return val.indexOf(‘.‘) >= 0 ? val.split(‘.‘)[0].replace(reg,‘,‘) + ‘.‘ + val.split(‘.‘)[1] : val.replace(reg,‘,‘);}</script></body></html>
其他版本的js实现千分位文章：https://www.cnblogs.com/lvmylife/p/8287247.html
