Question

我用以下格式的数组填充了符合结构的元素：

Struct Domain {
    var name: String
    var areas: [String]
}

let myArray = [
    Domain(name: "name1", areas: ["area1A", "area1B"]),
    Domain(name: "name2", areas: ["area2A", "area2B", "area2C"]),
    Domain(name: "name3", areas: ["area3A"])
]

我知道如何将新的Domain对象附加到myArray，但是如何为myArray中的现有Domain对象附加新的区域条目？

Answer 1

将数组let更改为var

var myArray = [
        Domain(name: "name1", areas: ["area1A", "area1B"]),
        Domain(name: "name2", areas: ["area2A", "area2B", "area2C"]),
        Domain(name: "name3", areas: ["area3A"])
    ]

找到要更改的域的索引

if let indexOfdomain = myArray.firstIndex(where: {$0.name == "name2"}) {
            myArray[indexOfdomain] = Domain(name: "name2", areas: ["area3A"])
        }

        print(myArray)

如何将数据追加并保存到字典数组[String：[String]]

1 个答案: