fix: swiper-item item-id属性应为字符串

pages/component/sticky-header/sticky-header.uvue

@@ -4,7 +4,7 @@
     @refresherrefresh="list_view_refresherrefresh">
     <list-item type=1>
       <swiper indicator-dots="true" circular="true">
-        <swiper-item v-for="i in 3" :item-id="i">
+        <swiper-item v-for="i in 3" :item-id="i + ''">
           <image src="/static/shuijiao.jpg" style="height: 240px; width: 100%;"></image>
           <text style="position: absolute;">{{i}}</text>
         </swiper-item>