https://developers.weixin.qq.com/doc/offiaccount/Message_Management/Batch_Sends_and_Originality_Checks.htmlhttps://developers.weixin.qq.com/doc/offiaccount/Getting_Started/Overview.htmlhttps://developers.weixin.qq.com/doc/offiaccount/OA_Web_Apps/iOS_WKWebview.html 通过该接口群发，content里面的<video>标签会丢失，素材也是上传到了微信的永久素材。 视频素材：https://mpvideo.qpic.cn/0bc324aagaaaxuamr5frs5tfbv6daplqaaya.f10002.mp4?dis_k=ac02d2d279600a8b8828b8d67bd72cb8&dis_t=1722928010&play_scene=10000&auth_info=comtta4udq6QhPZzMUgxCmdSQSEKbmgifw==&auth_key=7e646c302561560360a3bd03db032f58&save=1