斯威夫特：字典里面阵列 [英] Swift: dictionaries inside array

问题描述

数据：

[
    { firstName: "Foo", lastName: "Bar" },
    { firstName: "John", lastName: "Doe" }
]

我怎么能使用SWIFT数组和字典这样的结构？这一数据说明内部数组字典，对不对？因此，我建议：

How can I have this kind of structure using swift array and dictionary? This data shows dictionaries inside an array, right? So I suggest:

var persons:Array = [Dictionary<String, String>()]

但是这给我的错误：

but this gives me the error:

Cannot convert the expressions type () to type Array<T>

任何想法？

推荐答案

正确的方法是：

var persons = [Dictionary<String, String>]()

这相当于：

var persons = [[String : String]]()

你的code做反而是创建一个实例词典＆LT填充数组;字符串，字符串＆GT; ，而我想要presume字符串，字符串＆GT;含元素字典＆LT数组的一个空的实例。键入

What your code does instead is to create an array filled in with an instance of Dictionary<String, String>, whereas I presume you want an empty instance of the array containing elements of Dictionary<String, String> type.

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