如何从Swift中的对象字典中获取键和值？

Question

任何人都可以帮我把这个数组中的键值打印到控制台吗？

当我给出键名时,我能够遍历数组并打印出一个值.但我不知道如何循环键值aswel.

var tableDataGates : [[String:String]] = [
      ["TopTitle" : "Gate A1", "MiddleText" : "Lissabon", "MiddleTextExtra" : "15:15","BottomText" : "Check-in opens at", "BottomTextExtra" : "15:00", "TimeToEndPoint" : "10"]
]

for x in 0 ..< tableDataGates.count {
    print(tableDataGates[x]["TopTitle"]); //PRINTS "GATE A1"
}

提前致谢

Answer 1

你可以这样做:

var tableDataGates : [[String:String]] = [
    ["TopTitle" : "Gate A1", "MiddleText" : "Lissabon", "MiddleTextExtra" : "15:15","BottomText" : "Check-in opens at", "BottomTextExtra" : "15:00", "TimeToEndPoint" : "10"]
]

for gate in tableDataGates {
    for (key, value) in gate {
        print("\(key): \(value)")
    }
}

哪个输出:

MiddleText: Lissabon
TimeToEndPoint: 10
TopTitle: Gate A1
BottomTextExtra: 15:00
BottomText: Check-in opens at
MiddleTextExtra: 15:15