$(function() {
  var $list = $(".banner3");
  var $noid;
  for (var i = 0; i < $list.length; i++) {
    if (!$list[i].id) {
      $noid = $($list[i]);
      break;
    }
  }
  var currentid = "banner3" + date.now();
  $noid.attr("id", currentid);
  currentid = "#" + currentid;
  var myswiper = new swiper(currentid + ' .swiper-container', {
    effect: 'fade',
    speed: 500,
    fadeeffect: {
      crossfade: true
    },
    autoplay: {
      disableoninteraction: false
    },
    loop: true,
    navigation: {
      nextel: currentid + " .swiper-button-next",
      prevel: currentid + " .swiper-button-prev",
    },
    pagination: {
      el: currentid + " .swiper-pagination",
      clickable: true
    },
    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
  })
})