//一定時間內完成動作后執行某個動作

+(void)animateWithDuration:(NSTimeInterval)duration animations:(void (^)(void))animations completion:(void (^__nullable)(BOOL finished))completion;

//一定時間內完成動作

+(void)animateWithDuration:(NSTimeInterval)duration animations:(void (^)(void))animations;

/*

duration : 動畫時間

delay : 延遲時間

dampingRatio : 阻尼系數(彈性) 越小越彈

velocity : 速率

options : 選項

animations : 做動畫的代碼塊

completion : 動畫完成的代碼塊 "回調"

*/

+(void)animateWithDuration:(NSTimeInterval)duration?delay:(NSTimeInterval)delay?usingSpringWithDamping:(CGFloat)dampingRatioinitialSpringVelocity:(CGFloat)velocity?options:(UIViewAnimationOptions)options?animations:(void (^)(void))animations?completion:(void (^__nullable)(BOOL finished))completion;