拷贝链接:http://www.jianshu.com/p/4019404033c3

NSString*NSStringFromCGPoint(CGPoint point);

NSString*NSStringFromCGVector(CGVector vector);

NSString*NSStringFromCGSize(CGSize size);

NSString*NSStringFromCGRect(CGRect rect);

NSString*NSStringFromCGAffineTransform(CGAffineTransform transform);

NSString*NSStringFromUIEdgeInsets(UIEdgeInsets insets);

NSString*NSStringFromUIOffset(UIOffset offset);

NSString*NSStringFromSelector(SELaSelector);

NSString*NSStringFromClass(Class aClass);

NSString*NSStringFromProtocol(Protocol*proto);

NSRange NSUnionRange(NSRange range1, NSRange range2);

NSRange NSIntersectionRange(NSRange range1, NSRange range2);

NSString*NSStringFromRange(NSRange range);

NSRange NSRangeFromString(NSString*aString);