获取永久素材地址：https://developers.weixin.qq.com/doc/offiaccount/Asset_Management/Getting_Permanent_Assets.html 获取图片或者音频这些素材，官方返回的数据是直接返回文件内容，我应该如何判断他返回的文件是图片还是音频？

https://developers.weixin.qq.com/doc/offiaccount/Custom_Menus/Creating_Custom-Defined_Menu.html 我公众号返回的菜单列表如下：菜单类型type有news,img,也有video这些，而官网提及的12种自定义类型，为什么没有介绍这几种？ { "button": [ { "type": null, "name": "测试菜单", "key": null, "value": null, "url": null, "news_info": null, "sub_button": { "list": [ { "type": "news", "name": "发送图文消息", "key": null, "value": "6l4seE8tFUr5Ri9AhrDIFmK2PsA5cq_pr5dQWZVHuSViBcQIQ6EyWPo9yq7OvlLf", "url": null, "news_info": { "list": [ { "title": "谢谢关注amia!", "author": "", "digest": "", "show_cover": 0, "cover_url": "", "content_url": "http://mp.weixin.qq.com/s?__biz=MzkwMzU0Njg0Nw==&mid=2247483652&idx=1&sn=b39a0416f7270484988872397ad6f0b6&chksm=c095d3b4f7e25aa2693c56da22c982e85b9e66020eb83abb1738f608f38492c1a1f48a215bee#rd", "source_url": "" } ] }, "sub_button": null }, { "type": "img", "name": "发送图片", "key": null, "value": "qBZOI6pfikcanfZc0mcoW0_0hdvam-JUydToqiUvOnR7i4VhcA7GuKYrnhfi-LRK", "url": null, "news_info": null, "sub_button": null }, { "type": "view", "name": "跳转网页", "key": null, "value": null, "url": "http://mp.weixin.qq.com/s?__biz=MzkwMzU0Njg0Nw==&mid=2247483650&idx=1&sn=d1d7f4a584e79b17290fb7909a9a1099&chksm=c095d3b2f7e25aa4ed8336f38c999a1803596735f315f6fba15c41d0d0e5abd6eeb52d2968b5&scene=18#wechat_redirect", "news_info": null, "sub_button": null } ] } }, { "type": "video", "name": "发送视频", "key": null, "value": "http://mp.weixin.qq.com/mp/mp/video?__biz=MzkwMzU0Njg0Nw==&mid=100000010&sn=679ad054400cc661c07f248110cc3e3f&vid=wxv_3080650063429517322&idx=1&vidsn=4b2bebedda463d3bfff83a302a146851&fromid=1#rd", "url": null, "news_info": null, "sub_button": null } ] }

这个问题从2021年就有人反馈了，或者更早之前，但是不知道为什么一直没有被解决。我不知道是技术运营不懂技术，没有使用过这个产品，还是因为腾讯的开发太菜，这个问题解决不了。 这是之前的帖子：https://developers.weixin.qq.com/community/minihome/doc/000e04a2a4043898cc3db67265b800 复现gif：[图片] 撤销更改后，它过了一秒，又还原了，奇葩玩意