Block and Closures Posted on 2021-11-11 Edited on 2024-10-03 Views: Disqus: 看能不能搞清楚为什么及它的原理，而不是记住怎么用😂 参考Retain cycle on self with blocksI finally figured out weakSelf and strongSelf参考文档比较有用，Understanding weak and strong in Objective CHow blocks are implemented (and the consequences)Blocks and Closures in Objective-C