标签：blog io div sp on c log ad r
@property(nonatomic) CGFloat scale @property(nonatomic, readonly) CGFloat velocity
@property(nonatomic) CGFloat rotation @property(nonatomic, readonly) CGFloat velocity
UIPinchGestureRecognizer UIRotationGestureRecognizer
标签：blog io div sp on c log ad r
原文地址：http://www.cnblogs.com/zhongriqianqian/p/3986463.html
