文档地址：https://developers.weixin.qq.com/doc/offiaccount/Message_Management/Service_Center_messages.html#7

appId：wx1134ad68067fe2d5

我的入参：

{

"touser": "oVcLF6A7WFPYMHtHqsPtWxK9wdzQ",

"msgtype": "video",

"video": {

"media_id": "Vif0U0diICY-yLoWb-PhYcmni3Vv5WwKS2Gv5pl6YQvX-cCGVXEf_7NgUrEaihQU",

"thumb_media_id": "Vif0U0diICY-yLoWb-PhYXrfp1fFh3hIbIeV_qk6qBmPNB4AgAHNf3C2D7mITpmP",

"title": "你好",

"description": "你好世界"

}

}

接收到消息的效果图：

为什么我上传的缩略图没有生效