vue-video-player默认是视频封面是视频第一帧,怎么设置其他封面? 截图 代码 <template> <div class='container'> <div class='player' > <video-player ref='videoPlayer' :options='playerOptions' :playsinline='true' class='video-player vjs-custom-skin' @play='onPlayerPlay($event)' @pause='on...