数值转换为3位逗号分隔( 转)
function formatNum(strNum) { if (strNum.length <= 3) { return strNum; } if (!/^(\+|-)?(\d+)(\.\d+)?$/.test(strNum)) { return strNum; } var a = RegExp.$1, b = RegExp.$2, c = RegExp.$3; var re = new RegExp(); re.compile("(\\d)(\\d{3})(,|$)"); while (re.test(b)) { b = b.replace(re, "$1,$2$3"); } return a + "" + b + "" + c; }
posted on 2015-03-09 10:41 huangfenggu 阅读(342) 评论(0) 编辑 收藏 举报