1. #import <Foundation/Foundation.h>
   
2. //定义及实现类
   
3. typedef enum{kSexMan,kSexWoman,kSexYao} Sex;
   
4. @interface Person : NSObject
   
5. {
   
6.     @public
   
7.     NSString *_name;
   
8.     Sex _sex;
   
9. }
   
10. -(Person *)changeSex:(Person *) person;
    
11. -(void) disPerson:(Person *) person;
    
12. @end
    
13. @implementation Person
    
14. 
    
15. -(Person *) changeSex:(Person *) person;
    
16. {
    
17.     person->_sex = kSexYao;
    
18.     return person;
    
19. }
    
20. -(void) disPerson:(Person *) person{
    
21.     NSLog(@"姓名：%@，性别：%d",person->_name,person->_sex);
    
22. }
    
23. 
    
24. @end

复制代码

当在main主函数中定义了
Person *p1 = [Person new];
        p1 ->_name = @"梅长苏";
后，字符串“梅长苏”和C语言中是否一样存在内存中的ESS段？

1. #import <Foundation/Foundation.h>
   
2. //定义及实现类
   
3. typedef enum{kSexMan,kSexWoman,kSexYao} Sex;
   
4. @interface Person : NSObject
   
5. {
   
6.     @public
   
7.     NSString *_name;
   
8.     Sex _sex;
   
9. }
   
10. -(Person *)changeSex:(Person *) person;
    
11. -(void) disPerson:(Person *) person;
    
12. @end
    
13. @implementation Person
    
14. 
    
15. -(Person *) changeSex:(Person *) person;
    
16. {
    
17.     person->_sex = kSexYao;
    
18.     return person;
    
19. }
    
20. -(void) disPerson:(Person *) person{
    
21.     NSLog(@"姓名：%@，性别：%d",person->_name,person->_sex);
    
22. }
    
23. 
    
24. @end

复制代码

当在main主函数中定义了
Person *p1 = [Person new];
        p1 ->_name = @"梅长苏";
后，字符串“梅长苏”和C语言中是否一样存在内存中的ESS段？