makeObjectsPerformSelector对数组中的对象发送消息执行对象中方法
摘要:- (void)makeObjectsPerformSelector:(SEL)aSelector; - (void)makeObjectsPerformSelector:(SEL)aSelector withObject:(id)argument; 这是 NSArray和NSSet的两个方法,相信
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NSHashTable NSPointerArray
摘要:NSHashTable和NSMapTable能够对持有的对象做strong或weak存储,弱持有weak引用对象,当weak对象释放后会自动从表中移除 http://blog.csdn.net/jijunyuan/article/details/39962923 NSHashTable/NSSet:
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