object-c模型设计练习

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设计模型：

微博用户包含：

姓名、微博号码、密码、头像、性别、手机、生日

微博包含：

微博内容、微博配图、发送时间、微博发送人、转发的微博、被评论数、被转发数

User.h

#import <Foundation/Foundation.h>typedef enum {    SexMan,   //男    SexWomen  //女}Sex;typedef struct {    int year;    int month;    int day;}Date;// 姓名、微博号码、密码、头像、性别、手机、生日@interface User : NSObject@property (nonatomic, retain) NSString *name;@property (nonatomic, retain) NSString *account;@property (nonatomic, retain) NSString *password;//http://weibo.com/a.png - URL@property (nonatomic, retain) NSString *icon;@property (nonatomic, assign) Sex sex;@property (nonatomic, retain) NSString *phone;@property (nonatomic, assign) Date date;@end

User.m

#import "User.h"@implementation User- (void)dealloc{    [_name release];    [_account release];    [_password release];    [_icon release];    [_phone release];        [super dealloc];}@end

Status.h

#import <Foundation/Foundation.h>#import "User.h"// 微博内容、微博配图、发送时间、微博发送人、转发的微博、被评论数、被转发数@interface Status : NSObject@property (nonatomic, retain) NSString *text;@property (nonatomic, retain) NSString *icon;// 从1970-01-01 00:00:00 开始，一共度过的多少毫秒(time_t = long)@property (nonatomic, assign) time_t time;@property (nonatomic, retain) User *user;@property (nonatomic, retain) Status *retweetStatus;@property (nonatomic, assign) int commentsCount;@property (nonatomic, assign) int retweetsCount;@end

Status.m

#import "Status.h"@implementation Status- (void)dealloc{    [_text release];    [_icon release];    [_user release];    [_retweetStatus release];        [super dealloc];}@end

main.m

#import <Foundation/Foundation.h>#import "User.h"#import "Status.h"int main(int argc, const char * argv[]){    // 新建2个用户    User *u = [[User alloc] init];    u.name = @"2B";        User *u2 = [[User alloc] init];    u2.name = @"傻B";        // 新建2条微博    Status *s = [[Status alloc] init];    s.text = @"今天天气真好！";    s.user = u;        Status *s2 = [[Status alloc] init];    s2.text = @"今天天气真的很好！";    s2.retweetStatus = s;    s2.user = u2;    [u release];    [u2 release];    [s release];    [s2 release];    return 0;}

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