急！我不清楚我这怎么回事，没用第三方框架啊！ - 黑马程序员技术交流社区

#import <Foundation/Foundation.h>
#import "Student.h"
int main(int argc, const char * argv[])
{
Student *p1 = [[Student alloc] initWithName:@"Jim" andAge:18 andScore:78];
// Student *p2 = [[Student alloc] initWithName:@"Jack" andAge:19 andScore:82];
//
// Student *p3 = [[Student alloc] initWithName:@"May" andAge:17 andScore:99];
//
// Student *p4 = [[Student alloc] initWithName:@"Lily" andAge:18 andScore:60];
//
// Student *p5 = [[Student alloc] initWithName:@"Candy" andAge:18 andScore:75];
NSLog(@"%@",p1);
// [p1 release];
// [p2 release];
// [p3 release];
// [p4 release];
// [p5 release];
return 0;
}
#import <Foundation/Foundation.h>
@interface Student : NSObject
{
int _age;
int _score;
NSString *_name;
}
//年龄分数姓名的get set
-(void)setAge:(int)age;
-(int)age;
-(void)setScore:(int)score;
-(int)score;
-(void)setName:(NSString *)name;
-(NSString *)name;
//快速构造器的声明
-(id)initWithName:(NSString *)name andAge:(int)age andScore:(int)score;
@end
#import "Student.h"
@implementation Student
//年龄分数姓名的set get的实现
-(void)setAge:(int)age
{
_age = age;
}
-(int)age
{
return _age;
}
-(void)setScore:(int)score
{
_score = score;
}
-(int)score
{
return _score;
}
-(void)setName:(NSString *)name
{
if ( name != _name)
{
[_name release];
_name = [name retain];
}
}
-(NSString *)name
{
return _name;
}
//输出整个学生信息
- (NSString *)description
{
return [NSString stringWithFormat:@"My Name Is %@,Age Is %d.Score Is %d.",_name,_age,_score];
}
//快速构造器的实现
-(id)initWithName:(NSString *)name andAge:(int)age andScore:(int)score
{
if ( self = [super init])
{
_name = name;
_age = age;
_score = score;
}
return self;
}
@end

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