TuSDKTweenElastic Class Reference Inherits from TuSDKTween : NSObject Declared in TuSDKTSAnimation.h Overview Elastic：指数衰减的正弦曲线缓动 amplitude 振幅，可选参数 @property (nonatomic) float amplitude Declared In TuSDKTSAnimation.h period 周期，可选参数 @property (nonatomic) float period Declared In TuSDKTSAnimation.h