@properties - 内存管理

Question

这段代码对内存管理是否合适？

@property (nonatomic, retain) id object;
...
id anObject = [[Object alloc] init];
self.object = anObject;
id otherObject = [[Object alloc] init];
self.object = otherObject;

感谢您的回答， 基督教

Answer 1

没有。如属性描述符所示，它将在分配时保留对象。因此，当您分配它时，在将对象分配给self.object时，您的对象中将有两个保留。所以，你必须释放它：

@property (nonatomic, retain) id object;
...
id anObject = [[Object alloc] init];
self.object = anObject;
[anObject release];

id otherObject = [[Object alloc] init];
self.object = otherObject;
[otherObject release];
...
at dealloc:
self.object = nil;

祝你好运！