no message

src/views/layout/slidebar.vue

@@ -3,7 +3,7 @@
     <el-menu :default-active="onRoutes" class="el-menu-vertical-demo" theme="dark" unique-opened router>
       <template v-for="(item,_index) in items">
         <template v-if="item.subs">
-          <el-submenu :index=" 'index_' + _index" :key="item.index">
+          <el-submenu :index=" 'index_' + _index" :key="_index">
             <template slot="title"><i :class="item.icon"></i>{{item.title}}</template>
             <el-menu-item v-for="(subItem,i) in item.subs" :key="i" :index="'/'+subItem.index">
               <i class="sub-icon" :class="subItem.icon"></i>
@@ -21,12 +21,12 @@
         </template>
         <template v-else>
           <template v-if="item.isMessageSend">
-            <el-menu-item :index="'/'+item.index" :key="item.index" @click="goToMessageSendPage(item.checkAuth)" class="set-normal-background">
+            <el-menu-item :index="'/'+item.index" :key="_index" @click="goToMessageSendPage(item.checkAuth)" class="set-normal-background">
               <i :class="item.icon"></i>{{ item.title }}
             </el-menu-item>
           </template>
           <template v-else>
-            <el-menu-item :index="'/'+item.index" :key="item.index">
+            <el-menu-item :index="'/'+item.index" :key="_index">
               <i :class="item.icon"></i>{{ item.title }}
             </el-menu-item>
           </template>