refactor: 上传列表组件里v-for的key不用index

src/views/material/components/uploadList1.1.0.vue

@@ -16,8 +16,8 @@
     <div class="content" v-show="expandSwitch">
       <div
         class="list-item" 
-        v-for="(taskItem, index) in taskList"
-        :key="index"
+        v-for="(taskItem) in taskList"
+        :key="taskItem.uid"
       >
         <div class="left">
           <img class="type-icon" :src="uploadFieIconUrl" alt=""/>