如何将数组数据存储到结构中？

Question

i want to store "1" and "2" in datas1 as well "3" and "4" in datas2.

struct Datas {
    let datas1: String
    let datas2: String
}

 var datas : [String] = ["1","2","3","4"]

Answer 1

To store multiple strings in a variable, you should make it a collection like an array

struct Datas {
    let datas1: [String]
    let datas2: [String]
}

then you can assign them like:

var datas = Datas(
    datas1: ["1","2"],
    datas2: ["3","4"]
    // TODO: Don't forget to handle the rest of elements!)

---

Update due comments:

You can define a custom initializer that takes an array and build the struct:

extension Datas {
    init(array: [String]) {
        datas1 = Array(array.prefix(2))
        datas2 = Array(array.suffix(2))
    }
}

Usage :

let datas = Datas(array: ["1", "2", "3", "4"])

---

An Opinion to the data structure itself :

It seems like a two-dimensional array is a better fit for these datas:

let datas: [[String]] = [["1", "2"],["3", "4"]]

usage:

print(datas[0]) // ["1", "2"]
print(datas[1]) // ["3", "4"]