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arr.enumerated() 2.深度搜索

Reference articlehttps://agostini.tech/?s=rxSwift&submit=Search 运用场景当需要显...

Reference articlehttps://medium.com/design-patterns-in-swift/design-patt...

观察者模式https://medium.com/design-patterns-in-swift/design-patterns-in-swif...

@esacapinghttps://www.jianshu.com/p/4db19f1e9890 为什么要用weak selfhttps://w...

Reference articlehttp://pengguo.xyz/tutorial/2017/03/15/Swift-World-Desi...

Reference articlehttps://stablekernel.com/how-to-prevent-memory-leaks-in...

定义：如果一个闭包在一个函数return之后才被调用那么这个闭包就escaping了 swift 2 默认escapingswift 3 默认n...