前言
例如,有一个Person类: #import #import “Book.h”
@interface Person : NSObject @property(nonatomic,retain)NSString *name; @property(nonatomic,retain)Book *book; @end #import “Person.h”
@implementation Person – (void)dealloc { NSLog(@“人挂了。。。”); [_name release]; [_book release]; [super dealloc]; } @end
还有一个Book类:
#import
@interface Book : NSObject
/// 书名 @property(nonatomic,retain)NSString *name; ///作者名字 @property(nonatomic,retain)NSString *authorName;
///传播知识的方法 – (void)castZhiShi; @end
#import “Book.h”
@implementation Book – (void)dealloc { NSLog(@“书被烧了。。。”); [_name release]; [_authorName release];