修复视频多次切换播放失效的bug

src/modules/school/course/components/VideoPlayer.vue

@@ -15,19 +15,24 @@ export default {
   },
   data() {
     return {
+      player: null
     }
   },
   mounted() {
     const url = this.info.url
     setTimeout(() => {
-      const player = window.videojs('videoPlayer')
-      player.src({
+      this.player = window.videojs('videoPlayer')
+      this.player.src({
         src: url,
         type: 'application/x-mpegURL'
         // withCredentials: true
       })
-      player.play()
+      console.log(123)
+      this.player.play()
     }, 300)
+  },
+  beforeDestroy() {
+    this.player.dispose()
   }
 }
 </script>