<divv-for="item in leftMenu":key="item.index"class="three_children">
<!--没有子级菜单的情况-->
<el-menu-item
:index="item.index"
:name="item.index"
v-if="!item.children"
>
<i:class="item.className"></i>
<spanslot="title">{{item.label}}</span>
</el-menu-item>
<el-submenu:index="item.index"v-else>
<templateslot="title">
<i:class="item.className"></i>
<span>{{item.label}}</span>
</template>
<el-menu-item:index="item2.index":name="item2.index"v-for="(item2,index2) in item.children":key="index2"><i:class="item2.className"></i>{{item2.label}}</el-menu-item>