Object-C类、方法、构造函数(2)

#import <Foundation/Foundation.h>

@interface Student:NSObject
{
NSString *studentName;
NSInteger age;
}
-(void) printInfo;
-(void) setStudentName:(NSString*) name;
-(NSString*) studentName;
-(NSInteger) age;

@end

#import "Student.h"

@implementation Student

-(void) printInfo
{
NSLog(@"姓名:%@ 年龄：%d岁",studentName,studentAge);
}
-(void) setStudentName:(NSString*) name
{
studentName=name;
}
-(void)setAge:(NSInteger) age
{
studentAge=age;
}
-(NSString*) studentName
{
return studentName;
}
-(NSInteger) age
{
return studentAge;
}
@end

Student *student=[[Student alloc]init];  //init相当于实例化
[student setStudentName:@"张三"];
[student setAge:10];
[student printInfo];
[student release]; //资源释放