这里 我采用NSMutableArray 而不使用NSArray，是受了java的影响，前者接近java中的List，后者却接近java中的数组；
NSMutableArray长度可以不确定，可以在末尾继续添加对象，操作起来也比较方便。 具体 NSMutableArray和NSArray的区别，请参考下面的文章，介绍的很清楚；
http://blog.csdn.net/ganlijianstyle/article/details/7611776
NSArray中常用的方法，请参考下面的文章，介绍的很清楚：
http://blog.csdn.net/onetoneom/article/details/7894564
下面记下自己写的例子：
项目结构图如下：
Student.h
#import <Foundation/Foundation.h>
@interface Student : NSObject
{
int age;
NSString *name;
}
-(void) setAge:(int)a;
-(void) setName:(NSString *) n;
-(int) getAge;
-(NSString *) getName;
@end
Student.m
#import "Student.h"
@implementation Student
-(void) setAge:(int)a
{
age=a;
}
-(void)setName:(NSString *)n
{
name=n;
}
-(NSString *)getName
{
return name;
}
-(int)getAge
{
return age;
}
@end
Opeartion.h
#import <Foundation/Foundation.h> @interface Opeartion : NSObject +(void)arropeartion1; +(void)arropeartion2; @end
Opeartion.m
#import "Opeartion.h"
#import "Student.h"
@implementation Opeartion
+(void)arropeartion1
{
Student *student1=[[Student alloc] init];
[student1 setName:@"郭靖"];
[student1 setAge:20];
Student *student2=[[Student alloc] init];
[student2 setName:@"黄蓉"];
[student2 setAge:19];
NSMutableArray *arr=[[NSMutableArray alloc] init];
[arr addObject:student1];
[arr addObject:student2];
[student1 release];
[student2 release];
for (int i=0; i<[arr count]; i++) {
Student *stu=[arr objectAtIndex:i];
NSLog(@"姓名：%@， 年龄：%i",[stu getName],[stu getAge]);
[stu release];
}
}
+(void)arropeartion2
{
NSMutableArray *array=[[NSMutableArray alloc] init];
for (int i=0; i<10; i++) {
Student *stu=[[Student alloc] init];
[stu setAge:i];
[stu setName:@"郭靖"];
[array addObject:stu];
[stu release];
}
for (int i=0; i<[array count]; i++) {
Student *st=[array objectAtIndex:i];
NSLog(@"姓名： %@ , 年龄： %i ", [st getName], [st getAge]);
[st release];
}
}
@end
main.m
#import <Foundation/Foundation.h>
#import "Student.h"
#import "Opeartion.h"
int main(int argc, const char * argv[])
{
@autoreleasepool {
[Opeartion arropeartion1];
NSLog(@"---------------");
[Opeartion arropeartion2];
}
return 0;
}