发现直接修改播放器配置不生效，加载的还是初始化时的播放配置
直接修改dom

			<div class="video-player-box vjs-big-play-centered"
          			 ref="videoPlayer"  <!--绑定ref-->
					 :playsinline="playsinline"
					 @play="onPlayerPlay($event)"
					 @pause="onPlayerPause($event)"
					 @ended="onPlayerEnded($event)"
					 @loadeddata="onPlayerLoadeddata($event)"
					 @waiting="onPlayerWaiting($event)"
					 @playing="onPlayerPlaying($event)"
					 @timeupdate="onPlayerTimeupdate($event)"
					 @canplay="onPlayerCanplay($event)"
					 @canplaythrough="onPlayerCanplaythrough($event)"
					 @ready="playerReadied"
					 @statechanged="playerStateChanged($event)"
					 v-video-player:myVideoPlayer="playerOptions"
					 >
			</div>

let myPlayer = this.$refs.videoPlayer.firstChild.firstChild
myPlayer.src = '1.mp4' //播放地址