html显示千分位及小数位 使用CSS格式化数字(小数位 千位分隔符等)

嗯，对于Javascript中的任何数字，我使用下一个：

var a = "1222333444555666777888999";

a = a.replace(new RegExp("^(\\d{" + (a.length%3?a.length%3:0) + "})(\\d{3})","g"),"$1 $2").replace(/(\d{3})+?/gi,"$1 ").trim();

如果您需要使用任何其他分隔符作为逗号，例如：

var sep = ",";

a = a.replace(/\s/g,sep);

或作为功能：

function numberFormat(_number,_sep) {

_number = typeof _number != "undefined" && _number > 0 ? _number : "";

_number = _number.replace(new RegExp("^(\\d{" + (_number.length%3? _number.length%3:0) + "})(\\d{3})","$1 ").trim();

if(typeof _sep != "undefined" && _sep != " ") {

_number = _number.replace(/\s/g,_sep);

}

return _number;

}