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苹果官方文档：不稳定的传送门读书笔记共有以下几篇，其他的知识点不重要或者已经熟悉不需记录《Programming with Objective-C》第三章 Working with Objects《Programming with Objective-C》第四章 Encapsulating Data... 阅读全文
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Blocks are Objective-C objects, which means they can be added to collections like NSArray or NSDictionary.Block语法——无参数版本定义（Block的值）^{ NSLog(@"This ... 阅读全文
摘要：
Object和普通变量的区别If you’re used to using terms like the stack and the heap, a local variable is allocated on the stack, while objects are allocated on th... 阅读全文