1.5.2类实现(@implementation)

1.5.2类实现(@implementation)

@implementation 类名

                  方法实现代码；

 @end

例子：Member的接口实现

@implementation Member

//@synthesize age=_age;

- (int) age {

     return age;

}  

- (void) setAge: (int) input

{

      age = input;

}

//@synthesize name=_name;

- (NSString*) name {

            return name;

}

- (void) setName:(NSString*) input

{

    [name autorelease];

    name = (input retain);

}

@end

- (NSString *) description

{

   return [NSString  stringWithFormat: @"year=%d,month=%d ",y,m];

}

便利构造器

//系统初始化

- (id) init

{

     if ( self =[super init ] )

   {

       //initialization code here;

    }

 return self;

}