menus菜单数据只展示第一级数据

[
    {
        "path": "collectFolder",
        "nid": "collectFolder",
        "title": "收藏",
        "key": "collectFolder",
        "expand": false,
        "category": "folder",
        "isRoot": true,
        "isHide": true,
        "hideIcon": true,
        "loading": false,
        "children": [

        ],
        "selected": false
    },
    {
        "path": "selfFolder",
        "nid": "selfFolder",
        "title": "个人文件夹",
        "key": "selfFolder",
        "expand": false,
        "category": "folder",
        "isRoot": true,
        "isHide": false,
        "hideIcon": true,
        "loading": false,
        "children": [

        ],
        "selected": true
    },
    {
        "path": "shareFolder",
        "nid": "shareFolder",
        "title": "共享文件夹",
        "key": "shareFolder",
        "expand": false,
        "category": "folder",
        "isRoot": true,
        "isHide": false,
        "hideIcon": true,
        "loading": false,
        "children": [

        ],
        "selected": false
    },
    {
        "path": "userFolder",
        "nid": "userFolder",
        "title": "用户文件夹",
        "key": "userFolder",
        "expand": false,
        "category": "folder",
        "isRoot": true,
        "isHide": false,
        "hideIcon": true,
        "loading": false,
        "children": [

        ],
        "selected": false
    },
    {
        "path": "netFolder",
        "nid": "netFolder",
        "title": "网络文件夹",
        "key": "netFolder",
        "expand": false,
        "category": "folder",
        "isRoot": true,
        "isHide": true,
        "hideIcon": true,
        "loading": false,
        "children": [

        ],
        "selected": false
    },
    {
        "path": "deviceFolder",
        "nid": "deviceFolder",
        "title": "外部设备",
        "key": "deviceFolder",
        "expand": false,
        "category": "folder",
        "isRoot": true,
        "isHide": true,
        "hideIcon": true,
        "loading": false,
        "children": [

        ],
        "selected": false
    },
    {
        "path": "isoFolder",
        "nid": "isoFolder",
        "title": "镜像",
        "key": "isoFolder",
        "expand": false,
        "category": "folder",
        "isRoot": true,
        "isHide": true,
        "hideIcon": true,
        "loading": false,
        "children": [

        ],
        "selected": false
    },
    {
        "path": "shareItems",
        "nid": "shareItems",
        "title": "分享的目录",
        "key": "shareItems",
        "expand": false,
        "category": "folder",
        "isRoot": true,
        "isHide": true,
        "hideIcon": true,
        "loading": false,
        "children": [

        ],
        "selected": false
    },
    {
        "path": "searchFiles",
        "nid": "searchFiles",
        "title": "搜索结果",
        "key": "searchFiles",
        "expand": false,
        "category": "folder",
        "isRoot": true,
        "isHide": true,
        "hideIcon": true,
        "loading": false,
        "children": [

        ],
        "selected": false
    }
]