Swift学习 --- 2.7闭包

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这章学的不是很透彻,需要再次学习

<span style="font-size:18px;">override func viewDidLoad() {        super.viewDidLoad()        // Do any additional setup after loading the view, typically from a nib.                let names = ["Chris", "Alex", "Ewa", "Barry", "Daniella"]        //        func backwards(s1: String, s2: String) -> Bool {//            return s1 > s2//        }//        var reversed = sort(names, backwards)                //1.闭包        var reversed = sort(names, { (s1: String, s2: String) -> Bool in            return s1 > s2            })                //2.根据上下文推断        reversed = sort(names, { s1, s2 in return s1 > s2 } )                //3.参数名缩写        reversed = sort(names, { $0 > $1 } )                //4.运算符函数        reversed = sort(names, >)                println(reversed)    }</span>

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