function move(ele,speed, json, callback) {
    clearInterval(ele.time);
    ele.time = setInterval(() => {

        var tag = true;//定时器开关
        for (var attr in json) {
            var target = json[attr];
            if (attr === 'opacity') {
                var now = getstyle(ele, 'opacity') * 100;//获取当前位置 parseInt()转为整数 getstyle()
            } else {
                var now = parseInt(getstyle(ele, attr));//获取当前位置 parseInt()转为整数 getstyle() 
            }


            // var dir = (target - now) / 10;// 缓动效果
            var dir = (target - now) > 0 ? speed : -speed;// 正常效果
            dir = dir > 0 ? Math.ceil(dir) : Math.floor(dir); //dir 大于0向上取整 否则向下取整

            now += dir; //前进或后退

            if ((now >= target && dir > 0) || (now <= target && dir < 0)) {//判断是否到边界
                now = target;
            }

            if (attr === 'opacity') {
                ele.style.opacity = now / 100;//改变元素的位置
                ele.style.filte = 'alpha(opacity=' + now + ')';//改变元素的位置
            } else {
                ele.style[attr] = now + 'px';//改变元素的位置
            }

            if (now !== target) {
                tag = false;
            }
        }

        if (tag) {
            clearInterval(ele.time);
            callback && callback();
        }

    }, 30);
}

function getstyle(ele, attr) {
    if (window.getComputedStyle)
        return window.getComputedStyle(ele)[attr];
    else return ele.currentStyle[attr];
}