//轮播图
let swiper = new Swiper("#swiper1", {
    pagination: {
        el: ".swiper-pagination"
    },
    loop: true, //循环
    observer: true,//修改swiper自己或子元素时，自动初始化swiper
    observeParents: true,//修改swiper的父元素时，自动初始化swiper
    speed: 500,
    autoplay: {
        disableOnInteraction: false,  //触碰后自动轮播也不会停止
        delay: 3000,
    }
});