分离播放器功能

src/player/toggleMix.js

@@ -0,0 +1,11 @@
+export default function toggleMix(art, player) {
+  Object.defineProperty(player, 'toggle', {
+    value: () => {
+      if (art.isPlaying) {
+        player.pause();
+      } else {
+        player.play();
+      }
+    }
+  });
+}