Question

在swift中创建字典时，字符串数组的值如下：

lazy var info : Dictionary = {

    var dictionary = [String: [String]]()
    dictionary["Key1"] = ["A", "B", "C"]
    dictionary["Key2"] = ["D", "E", "F"]

    return dictionary  
}()

无法分配给'Value？'

类型的不可变表达式

这里有什么想法吗？

Answer 1

我已经看到了你自己的答案，但这有一个更好的方法：在你的案例[String: [String]]中声明其正确的类型使用Swift字典：

lazy var info : [String: [String]] = {

    var dictionary = [String: [String]]()
    dictionary["Key1"] = ["A", "B", "C"]
    dictionary["Key2"] = ["D", "E", "F"]

    return dictionary
}()

Answer 2

更改

lazy var info : Dictionary = {

    var dictionary = [String: [String]]()
    dictionary["Key1"] = ["A", "B", "C"]
    dictionary["Key2"] = ["D", "E", "F"]

    return dictionary  
}()

到

lazy var info : NSDictionary = {

    var dictionary = [String: [String]]()
    dictionary["Key1"] = ["A", "B", "C"]
    dictionary["Key2"] = ["D", "E", "F"]

    return dictionary  
}()

一切都很好：）

使用字符串数组作为值在swift中创建字典

2 个答案: