@property（retain）需要释放吗？ [英] Does @property(retain) need a release?

问题描述

下面是代码的三个片段，前两个是两个对象的接口以及两个@property命令。请注意，这只是我学习，它不是应用程序的一部分只是一个小测试程序。

Below are three fragments of code, the first two are interfaces for two objects along with a couple of @property commands. Please note that this is just me learning, its not part of an application just a small test program.

添加（保留）到第二个@property后，我注意到我的程序退出时，我的机器对象泄漏，我修复这个问题是在艺术家对象dealloc，这听起来是否正确？

After adding (retain) to the 2nd @property I noticed that my machine object was leaking when my program exited, what I did to fix this was add a release in the Artist objects dealloc, does this sound right?

@interface Machine : NSObject
{
    NSString *name;
    NSString *type;
    NSString *os;
}

@interface Artist : NSObject
{
    NSString *name;
    Machine *system;
}
@property(copy) NSString *name;
@property(retain) Machine *system;
@end

// DEALLOC IN @implementation Artist
-(void)dealloc {
    NSLog(@"_deal: %@", self);
    [system release];
    [super dealloc];
}

gary

推荐答案

您必须在每次调用retain或alloc方法时手动调用release。

you must call release by hands for each time you've called retain or alloc method.

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