正文用js实现千位分隔符IP云V管理员/2022-12-01/0 阅读 12/01小程序:扫一扫查出行【扫一扫了解最新限行尾号】复制小程序 function mm(num) { return num && num .toString() .replace(/(\d)(?=(\d{3})+\.)/g, function($0, $1) { return $1 + ","; }); } console.log(mm(4152465465456.454)); //4,152,465,465,456.454