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引用官方的例子,但是在下方加入 回调函数后没有触发怎么破?求大神指点一下,我把里面的JS引用了一个遍,还是不行 
<!DOCTYPE html> 
<html lang="en"> 
<head> 
  <meta charset="utf-8"> 
  <title>Swiper demo</title> 
  <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1"> 
 
  <!-- Link Swiper's CSS --> 
  <link rel="stylesheet" href="../dist/css/swiper.min.css"> 
 
  <!-- Demo styles --> 
  <style> 
    html, body { 
      position: relative; 
      height: 100%; 
    } 
    body { 
      background: #eee; 
      font-family: Helvetica Neue, Helvetica, Arial, sans-serif; 
      font-size: 14px; 
      color:#000; 
      margin: 0; 
      padding: 0; 
    } 
    .swiper-container { 
      width: 100%; 
      height: 100%; 
    } 
    .swiper-slide { 
      text-align: center; 
      font-size: 18px; 
      background: #fff; 
 
      /* Center slide text vertically */ 
      display: -webkit-box; 
      display: -ms-flexbox; 
      display: -webkit-flex; 
      display: flex; 
      -webkit-box-pack: center; 
      -ms-flex-pack: center; 
      -webkit-justify-content: center; 
      justify-content: center; 
      -webkit-box-align: center; 
      -ms-flex-align: center; 
      -webkit-align-items: center; 
      align-items: center; 
    } 
  </style> 
</head> 
<body> 
  <!-- Swiper --> 
  <div class="swiper-container"> 
    <div class="swiper-wrapper"> 
      <div class="swiper-slide">Slide 1</div> 
      <div class="swiper-slide">Slide 2</div> 
      <div class="swiper-slide">Slide 3</div> 
      <div class="swiper-slide">Slide 4</div> 
      <div class="swiper-slide">Slide 5</div> 
      <div class="swiper-slide">Slide 6</div> 
      <div class="swiper-slide">Slide 7</div> 
      <div class="swiper-slide">Slide 8</div> 
      <div class="swiper-slide">Slide 9</div> 
      <div class="swiper-slide">Slide 10</div> 
    </div> 
    <!-- Add Pagination --> 
    <div class="swiper-pagination"></div> 
  </div> 
 
  <!-- Swiper JS --> 
  <script src="../dist/js/swiper.min.js"></script> 
 
  <!-- Initialize Swiper --> 
  <script> 
    var swiper = new Swiper('.swiper-container', { 
      pagination: { 
        el: '.swiper-pagination', 
      }, onSlideNextStart: function (swiper) { 
          alert('事件触发了;'); 
      } 
    }); 
  </script> 
</body> 
</html> 
 
 
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