可以播放 AudioClip 的 Timeline 轨道。
| CreateClip | 创建一个 TimelineClip 以便播放此轨道上的 AudioClip。 |
| hideFlags | 该对象应该隐藏、随场景一起保存还是由用户修改？ |
| name | 对象的名称。 |
| duration | 实例化 Playable 的播放持续时间，以秒为单位。 |
| outputs | 实例化 Playable 输出的描述。 |
| isEmpty | 此轨道是否有任何剪辑？ |
| isSubTrack | 此轨道是不是子轨道？ |
| locked | 轨道的本地锁定状态。 |
| lockedInHierarchy | 轨道的锁定状态。（只读） |
| muted | 将轨道静音并从生成的 PlayableGraph 中排除。 |
| outputs | 实例化 Playable 输出的描述。 |
| parent | 此轨道的所有者。 |
| timelineAsset | 此轨道所属的 TimelineAsset。 |
| GetInstanceID | 返回对象的实例 ID。 |
| ToString | 返回 GameObject 的名称。 |
| CreatePlayable | 实现此方法以使资源将可播放项注入给定图中。 |
| CreateClip | 使用附加的自定义可播放资源在轨道上创建剪辑，其类型由 T 指定。如果轨道不支持指定的类型，则抛出 InvalidOperationException。 |
| CreateDefaultClip | 为此轨道创建默认剪辑，而剪辑的资源类型基于标记轨道的任何 TrackClipTypeAttribute。 |
| CreateTrackMixer | 创建一个混合器，用于混合轨道上的剪辑生成的可播放项。 |
| GetChildTracks | 附加到此轨道的子轨道的列表。 |
| GetClips | 返回轨道拥有的剪辑的可枚举列表。 |
| OnAfterTrackDeserialize | 覆盖此方法，以便在 Unity 反序列化您的轨道后接收回调。 |
| OnBeforeTrackSerialize | 覆盖此方法，以便在 Unity 序列化您的轨道前接收回调。 |
| OnCreateClip | 在轨道上创建剪辑时调用。使用此方法可以在时间轴剪辑或其 PlayableAsset 上设置默认值。 |
| Destroy | 删除 GameObject、组件或资源。 |
| DestroyImmediate | 立即销毁对象 /obj/。强烈建议您改用 Destroy。 |
| DontDestroyOnLoad | 在加载新的 Scene 时，请勿销毁 Object。 |
| FindObjectOfType | 返回第一个类型为 type 的已加载的激活对象。 |
| FindObjectsOfType | 返回所有类型为 type 的已加载的激活对象的列表。 |
| Instantiate | 克隆 original 对象并返回克隆对象。 |
| CreateInstance | 创建脚本化对象的实例。 |
| bool | 该对象是否存在？ |
| operator != | 比较两个对象是否引用不同的对象。 |
| operator == | 比较两个对象引用，判断它们是否引用同一个对象。 |
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