vue页面跳转时同步右侧菜单

重点添加 router :default-active="$route.path"

<el-menu router :default-active="$route.path" class="el-menu-vertical-demo" @open="handleOpen" @close="handleClose" theme="dark">
    <el-submenu index="1">
        <template slot="title">
            <i class="el-icon-location"></i>
            <span>用户信息</span>
        </template>
        <el-menu-item-group>
            <el-menu-item index="/user/account">账号信息</el-menu-item>
            <el-menu-item index="/user/password">修改密码</el-menu-item>
    </el-submenu>
    <el-submenu index="2">
            <template slot="title">
            <i class="el-icon-location"></i>
            <span>公司信息</span>
        </template>
        <el-menu-item-group>
            <el-menu-item index="/company/userManager">用户管理</el-menu-item>
            <el-menu-item index="/company/editUser">添加/编辑用户</el-menu-item>
        </el-menu-item-group>
        </el-submenu>
</el-menu>