https://developers.weixin.qq.com/doc/offiaccount/Asset_Management/Get_materials_list.html

文档内容:

{
       "media_id": MEDIA_ID,
       "name": NAME,
       "update_time": UPDATE_TIME,
       "url":URL
 }

视频素材 实际返回值:

{
  "media_id": "xxx",
  "name": "xxxx",
  "update_time": 00000000,
  "description": "",
  "tags": []
}