$(function(){
$require(['swiper'], function () {
  var newsBox = new Swiper ('.swiper.swiper_pic_news', {
      slidesPerView :1,
      spaceBetween : 0,
   autoplay: {
            delay: 3500, // 2.5秒切换一次
        },
          pagination: {
            el: '.swiper_pic_news .swiper-pagination',
            clickable: true,
        },
    loop:true,
      watchSlidesVisibility: true,
      centerInsufficientSlides: true,
      navigation: {
        nextEl: '.swiper_pic_news.swiper .swiper-button-next',
        prevEl: '.swiper_pic_news.swiper .swiper-button-prev',
      },
      breakpoints: { 
        768: {
          slidesPerView :1,
          spaceBetween : 0,
          
         
          
        }
      }
  })
  })
})