public enum class FillBehavior
public enum FillBehavior
type FillBehavior =
Public Enum FillBehavior
在达到活动期的终点后，时间线将保持其进度，直至其父级的活动期和保持期结束为止。After it reaches the end of its active period, the timeline holds its progress until the end of its parent's active and hold periods.
如果时间线超出活动期，而其父级在活动期内，则该时间线将停止。The timeline stops if it is outside its active period while its parent is inside its active period.