JavaScript数字格式化方法：千分位，百分数

//数字格式化,保留两位小数并每三位加逗号
function formatThousand2(data) {
    return number_format(data, 2,".",",");
}
//数字格式化，不保留小数并每三位加逗号
function formatThousand(data) {
    return number_format(data, 0,".",",");
}
//小数转换为分数(小数先转换成number类型，再乘以100，并且保留2位小数)
function formatPercent2(point){
    if(null == point){
        return "--";
    }
    var percent = (point*100).toFixed(2);
    percent+="%";
    return percent;
}