ChenYilong / ChenYilong/ParseSourceCodeStudy
串行队列中,异步会新建线程,只开一条线程的说法不够严谨吧?
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- Objective-C
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Description
在GCD 扫盲篇中提到:
异步:1)因为必定会开启新的线程,线程的申请是由异步负责,起到开分支的作用;
2)串行队列 :会新建线程,只开一条线程 一条线程就够了;
但是,如果在主队列中执行异步操作的话,是不会开启新线程的。
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