// (function($){
//     $.fn.numberrock=function(options){
//         var defaults={
//             speed:24,
//             count:100
//         };
//         var opts=$.extend({}, defaults, options);

//         var div_by = 100,
//         count=opts["count"],
//         speed = math.floor(count / div_by),
//         sum=0,
//         $display = this,
//         run_count = 1,
//         int_speed = opts["speed"];
//         var int = setinterval(function () {
//             if (run_count <= div_by&&speed!=0) {
//                 $display.text(sum=speed * run_count);
//                 run_count++;
//             } else if (sum < count) {
//                 $display.text(++sum);
//             } else {
//                 clearinterval(int);
//             }
//         }, int_speed);
//     }

// })(jquery);

//窗口显示才加载
var wraptop = $(".digital").offset().top;

var istrue = true;
$(window).on("scroll",function () {
        var s = $(window).scrolltop();
        // console.log(wraptop - 500)
        // console.log(s)
        if (s > wraptop - 700 && istrue) {
            $(".timer").each(count);
            function count(a) {
                var b = $(this);
                a = $.extend({},
                    a || {},
                    b.data("counttooptions") || {});
                b.countto(a)
            };
            istrue = false;
        };
})
//设置计数
$.fn.countto = function (options) {
    options = options || {};
    return $(this).each(function () {
        //当前元素的选项
        var settings = $.extend({}, $.fn.countto.defaults, {
            from: $(this).data('from'),
            to: $(this).data('to'),
            speed: $(this).data('speed'),
            refreshinterval: $(this).data('refresh-interval'),
            decimals: $(this).data('decimals')
        }, options);
        //更新值
        var loops = math.ceil(settings.speed / settings.refreshinterval),
            increment = (settings.to - settings.from) / loops;
        //更改应用和变量
        var self = this,
            $self = $(this),
            loopcount = 0,
            value = settings.from,
            data = $self.data('countto') || {};
        $self.data('countto', data);
        //如果有间断，找到并清除
        if (data.interval) {
            clearinterval(data.interval);
        };
        data.interval = setinterval(updatetimer, settings.refreshinterval);
        //初始化起始值
        render(value);

        function updatetimer() {
            value += increment;
            loopcount++;
            render(value);
            if (typeof (settings.onupdate) == 'function') {
                settings.onupdate.call(self, value);
            }
            if (loopcount >= loops) {
                //移出间隔
                $self.removedata('countto');
                clearinterval(data.interval);
                value = settings.to;
                if (typeof (settings.oncomplete) == 'function') {
                    settings.oncomplete.call(self, value);
                }
            }
        }

        function render(value) {
            var formattedvalue = settings.formatter.call(self, value, settings);
            $self.html(formattedvalue);
        }
    });
};
$.fn.countto.defaults = {
    from: 0, //数字开始的值
    to: 0, //数字结束的值
    speed: 1000, //设置步长的时间
    refreshinterval: 100, //隔间值
    decimals: 0, //显示小位数
    formatter: formatter, //渲染之前格式化
    onupdate: null, //每次更新前的回调方法
    oncomplete: null //完成更新的回调方法
};

function formatter(value, settings) {
    return value.tofixed(settings.decimals);
}
//自定义格式
$('#count-number').data('counttooptions', {
    formmatter: function (value, options) {
        return value.tofixed(options.decimals).replace(/\b(?=(?:\d{3})+(?!\d))/g, ',');
    }
});
//定时器
$('.timer').each(count);

function count(options) {
    var $this = $(this);
    options = $.extend({}, options || {}, $this.data('counttooptions') || {});
    $this.countto(options);
}