swiper pagination 修改

@@ -11,7 +11,8 @@
         </div>
         <div class="pagination-wrapper">
             <ul class="page-items">
-                <li v-for="index in slideCount" :key="index" class="page-item" :class="{active: index == activeIndex}"></li>
+                <li v-for="index in slideCount" :key="index" class="page-item"
+                    :class="{active: index - 1 == activeIndex}"></li>
             </ul>
         </div>
     </div>