JS将数字转换成三位逗号分隔的样式

function formatNumber(num){
	    if(!/^(\+|-)?(\d+)(\.\d+)?$/.test(num)){return   num;}   
	    var   a   =   RegExp.$1,   b   =   RegExp.$2,   c   =   RegExp.$3;   
	    var   re   =   new   RegExp().compile("(\\d)(\\d{3})(,|$)");   
	    while(re.test(b))   b   =   b.replace(re,"$1,$2$3");   
	    return   a +""+ b +""+ c;   
}

评论

2 楼 xxzjzb1 2010-08-28  

中秋送礼，首选书画、艺术品交易平台爱艺购！

1 楼 mozart0 2010-08-03  

货币:
num.toFixed(2).replace(/(\d)(?=(\d{3})+\.)/g, '$1,');