获取媒体目录

{
    "code": 0,
    "data": [
        {
            "label": "/media/",
            "value": "/media/"
        },
        {
            "label": "/media/child",
            "value": "/media/child"
        },
        {
            "label": "/media/test",
            "value": "/media/test"
        },
        {
            "label": "/media/test/12",
            "value": "/media/test/12"
        }
    ]
}