js实现千分符转化 function fmoney(s, n) { n = n > 0 && n <= 20 ? n : 2; s = parseFloat((s + '').replace(/[^\d\.-]/g, '')).toFixed(n) + ''; var l = s.split('.') [0].split('').reverse(), r = s.split('.') [1]; var t = ''; for (var i = 0; i < l.length; i++) { t += l[i] + ((i + 1) % 3 == 0 &&