2014年2月25日
GCD vs NSOperation
摘要： GCD is a lightweight way to represent units of work that are going to be executed concurrently. You don’t schedule these units of work; the system takes care of scheduling for you. Adding dependency among blocks can be a headache. Canceling or suspending a block creates extra work for you as a devel 阅读全文
posted @ 2014-02-25 18:48 walreal 阅读(1072) 评论(0) 推荐(0)