$(function(){
  // 鼠标滑过导航栏
  $('.pulldown').hide(); //打开页面隐藏下拉列表  $('.nav>.container>ul>li').hover( //鼠标滑过导航栏目时    function(){      $('.pulldown').slideUp(300); //显示下拉列表      $(this).children(".pulldown").slideDown(300);    },    function(){      $('.pulldown').slideUp(300); //鼠标移开后隐藏下拉列表
    }  );
  var mySwiper = new Swiper ('.swiper-container', {
        speed:300,
        autoplay : {
          delay:5000
        },
        loop: true, // 循环模式选项
        // 如果需要分页器
        pagination: {
          el: '.swiper-pagination',
        },
        // 如果需要前进后退按钮
        navigation: {
          nextEl: '.swiper-button-next',
          prevEl: '.swiper-button-prev',
        }
      })
      //鼠标移出隐藏按钮，移入显示按钮
      mySwiper.el.onmouseover=function(){
        mySwiper.navigation.$nextEl.removeClass('hide');
        mySwiper.navigation.$prevEl.removeClass('hide');
      }
      mySwiper.el.onmouseout=function(){
        mySwiper.navigation.$nextEl.addClass('hide');
        mySwiper.navigation.$prevEl.addClass('hide');
      }
      //鼠标进入图片暂停轮播
      $('.swiper-slide').mouseenter(function () {        mySwiper.autoplay.stop();
      })
      $('.swiper-slide').mouseleave(function () {        mySwiper.autoplay.start();
      })
})