使用键以数字开头的Swift解码json [英] Swift decode json with key starting as a number

问题描述

我有以下格式的json:

I have a json in following format:

let json = """
{
    "stuff": {
        "1": "one",
        "2": "two",
        "4": "four"
    }
}

问题是我该怎么做

struct Stuff: Codable, Equatable {
    let 1: String
    let 2: String
    let 4: String
}

编译工作吗?

我经常在下面用它来调用它，它对所有内容都适用，但如果让名字以数字开头，显然就不能编译

i use to call this with below, and it works fine for everything but if let name starts with number it obviously won't compile

let obj = try? JSONDecoder().decode(T.self, from: data)

推荐答案

您不能.变量不能以数字字符开头.不变的规则.

You can't. A variable must not start with a numeric character. Unalterable rule.

但是您可以使用CodingKeys

struct Stuff: Codable, Equatable {
    let one, two, four: String

    private enum CodingKeys : String, CodingKey { case one = "1",  two = "2", four = "4"}
}

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