Swift Codable如何对自定义数组进行编码

struct CustomArray: Codable {
    var elements: [CustomType]
}

struct CustomType: Codable {
    var property1: String
    var property2: Int
}

let customArray = CustomArray(elements: [CustomType(property1: "value1", property2: 1), CustomType(property1: "value2", property2: 2)])

let encoder = JSONEncoder()
encoder.outputFormatting = .prettyPrinted

do {
    let jsonData = try encoder.encode(customArray)
    if let jsonString = String(data: jsonData, encoding: .utf8) {
        print(jsonString)
    }
} catch {
    print("Encoding failed: \(error.localizedDescription)")
}