很多时候发现有时候js会提示自带函数不能使用，所以自己找了很多资料实现了个

html

js函数

/** * 自动补充百分比符号 * @param obj * @returns {String} */function fouces_bfh(obj) {    var o = obj.replace(',', '') + "";    if (o.indexOf("%") > -1) {        o = o.replace('%', '') + "";        //o = Number(o)/100;    }else{        o = o*100;    }    o = format1(o);    if (o.indexOf(".") <= -1) {        return o += ".00%";    }    if (o.substr(o.length - 1, 1) == ".") {        return o += ".00%";    }    if (o.substr(o.length - 2, 1) == ".") {        return o += "0%";    }    return o + "%";}

 

/** * 千分符格式化 * @param num * @returns */function format1 (num) {    if( num == null || num == undefined || num == ""  ){        return "";    }    if( isNaN(num)) return num;    //alert(num);    //return (parseFloat(num).toFixed(2) + '').replace(/\d{1,3}(?=(\d{3})+(\.\d*)?$)/g, '$&,');    return (toFixed(num,2) + '').replace(/\d{1,3}(?=(\d{3})+(\.\d*)?$)/g, '$&,');}function toFixed(number, precision) {    var b = 1;    if (isNaN(number)) return number;    if (number < 0) b = -1;    var multiplier = Math.pow(10, precision);    return Math.round(Math.abs(number) * multiplier) / multiplier * b;}

 另

/** * 千分符格式化 * @param num * @returns */function format1 (num) {    if( num == null || num == undefined || num == ""  ){        return "";    }    if( isNaN(num)) return num;    //alert(num);    return (parseFloat(num).toFixed(2) + '').replace(/\d{1,3}(?=(\d{3})+(\.\d*)?$)/g, '$&,');    //return (toFixed(num,2) + '').replace(/\d{1,3}(?=(\d{3})+(\.\d*)?$)/g, '$&,');}