layui.use(['carousel'], function () {
$ = layui.$;
var carousel = layui.carousel;
var i = 0
var ins   
var widthView =  document.body.clientWidth;
width = 1920 //获取宽度
height = 500 //获取高度
bili = widthView / width;
height = height *  bili;
console.log(height);
ins = carousel.render({
    elem: '#flash',
    width: "100%", //设置容器宽度q
    height: height,
    arrow: 'hover', //始终显示箭头
    anim: 'default', //切换动画方式
    autoplay: false
});
});