swiper3创建中间大两边小的轮播图（优化版）

js代码

var mySwiper = new Swiper ('.swiper-container', {
    watchSlidesProgress: true,
    slidesPerView: 'auto',
    centeredSlides: true,
    loop: true,
    loopedSlides: 3,
    autoplay: 3000,
    prevButton: '.swiper-button-prev',
    nextButton: '.swiper-button-next',
    pagination: '.swiper-pagination',
    //paginationClickable :true,
    onProgress: function(swiper, progress) {
        for (i = 0; i < swiper.slides.length; i++) {
            var slide = swiper.slides.eq(i);
            var slideProgress = swiper.slides[i].progress;
            modify = 1;
            if (Math.abs(slideProgress) > 3) {
                modify = (Math.abs(slideProgress) - 1) * 0.3 + 1;
            }
            translate = slideProgress * modify * 410 + 'px';
            scale = 1 - Math.abs(slideProgress) / 2.5;
            zIndex = 999 - Math.abs(Math.round(10 * slideProgress));
            slide.transform('translateX(' + translate + ') scale(' + scale + ')');
            slide.css('zIndex', zIndex);
            slide.css('opacity', 1);
            if (Math.abs(slideProgress) > 1) {
                slide.css('opacity', 0);
            }
        }
    },
    onSetTransition: function(swiper, transition) {
        for (var i = 0; i < swiper.slides.length; i++) {
            var slide = swiper.slides.eq(i)
            slide.transition(transition);
        }

    },
    //处理分页器bug
    onSlideChangeStart: function(swiper) {
     if (swiper.activeIndex == 4) {
         swiper.bullets.eq(9).addClass('swiper-pagination-bullet-active');
         console.log(swiper.bullets.length);
     }
    }
})

优化css

#certify .swiper-slide-prev{
    opacity:1!important;
}

附注