el-menu 侧边栏导航高亮

    <el-menu class="el-menu-vertical-demo"
             :default-active="$route.path"
             :default-openeds="openeds"
             :collapse="isCollapse"
             active-text-color="#ffd04b"
             router>
      <el-submenu index="1">
        <template slot="title">
          <i class="el-icon-location"></i>
          <span slot="title">电商类</span>
        </template>
        <el-menu-item-group>
          <el-menu-item index="/comment">电商评价类信息</el-menu-item>
          <el-menu-item index="/paramers">电商参数类信息</el-menu-item>
        </el-menu-item-group>
      </el-submenu>
    </el-menu>

增加:default-active="$route.path"即可实现高亮
增加:default-openeds="openeds" 即可实现导航栏某个类别展开
openeds=['1','2',^]
增加 :collapse="isCollapse"即可实现导航栏的展开与收起
isCollapse=true/false