摘要:
———————————————————————————————————————————super关键字的使用#import @interface Animal : NSObject-(void)run;-(void)eat;//+(void)eat;@end@implementation Anima... 阅读全文
摘要:
———————————————————————————————————————————动态类型检测代码:#import @interface Animal : NSObject-(void)run;-(void)abc;@end@implementation Animal-(void)run{ NS... 阅读全文