<el-submenu:index="childItem.MenuId+''"v-for="(childItem,childIndex) in secondList.SubList":key="childIndex">
<templateslot="title">
<span>{{childItem.MenuName}}</span>
</template>
<el-menu-item-group>
<el-menu-item:index="thirdChild.MenuId+''"@click.native="clickMenu(thirdChild)"v-for="(thirdChild,thirdIndex) in childItem.ThirdList":key="thirdIndex">
<el-menu-item:index="thirdChild.MenuId+''"@click.native="clickMenu(thirdChild)"v-for="(thirdChild,thirdIndex) in childItem.ThirdList":key="thirdIndex">