Swift_數組

//TODO:數組 <Any> 任意類型
    func arrayAp(){
        var bb = Dictionary<String,Float>()

        var a = Array<Int>()
        
        //增
        a.append(1)
        a.append(2)
        //刪
        a.remove(at: 0)
        //改
        a[0] = 200
        //插入
        a.insert(3, at: 0)
        
        let b = a
        
        
        var c = Array<Any>()
        c.append(bb)
        
        
        //遍歷數組
        for sub in b {
            print("sub = \(sub)")
        }
        
    }

字符串閉包排序

//sorted 參數必須是字符串
        let names = ["Cat", "Apple", "Egg", "Block", "Dog"]
        //倒序
        var reversedNames = names.sorted(by: { (s1: String, s2: String) -> Bool in
            return s1 > s2
        })
        let reversedNames2 = names.sorted { s1, s2 -> Bool in return s1 > s2}  //簡寫

        
        
        //順序
        var sequenceNames2 = names.sorted(by: { (s1: String, s2: String) -> Bool in
            return s1 < s2
        })
        let a = names.sorted { (s1: String, s2: String) -> Bool in
            return s1 < s2
        }
        let b = names.sorted { s1, s2 -> Bool in return s1 < s2}  //簡寫
        
        let c = names.sorted()