Question

如何在swift中获取类型字典数组的键。我希望输出为 location1，location2，location3（类型字典的数据数组的键）

//我的代码在下面给出

 class ViewController: UIViewController 
        {
        var data = [NSDictionary]()

            var LocationPickerData:[String] = ["Mozzarella","Gorgonzola","Provolone","Brie","Maytag Blue","Sharp Cheddar","Monterrey Jack","Stilton","Gouda","Goat Cheese", "Asiago"]

            var LocationPickerData2 = ["Mozzarella","Gorgonzola","Provolone","Brie","Maytag Blue","Sharp Cheddar","Monterrey Jack","Stilton","Gouda","Goat Cheese", "Asiago"]

            var LocationPickerData3 = ["Mozzarella","Gorgonzola","Provolone","Brie","Maytag Blue","Sharp Cheddar","Monterrey Jack","Stilton","Gouda","Goat Cheese", "Asiago"]

     override func viewDidLoad() {
                super.viewDidLoad()
             data = [["lacation1":LocationPickerData],["location2":LocationPickerData2],["location2":LocationPickerData3]]

print(data[keys])

        }
        }

Answer 1

在您的情况下，您将不得不遍历data并在每次迭代中获取数组中第一个对象的键。那是因为它是Array Dictionaries，而不是Dictionary。但是，我建议将data变量构造为Dictionary，除非您的解决方案还有更多内容，否则没有理由不这样做。

我建议你做以下事情：

data = ["location1":LocationPickerData, "location2":LocationPickerData2, "location3":LocationPickerData3]

然后，获得你的钥匙是微不足道的：

data.keys

注意：Dictionary不会被排序。

如何在swift中获取类型字典数组的键

1 个答案: