部分没有键的JSON数组的Kotlinx序列化

import kotlinx.serialization.Serializable
import kotlinx.serialization.decodeFromString
import kotlinx.serialization.encodeToString
import kotlinx.serialization.json.Json

@Serializable
sealed class JsonElement

@Serializable
data class JsonObject(val elements: List<JsonElement>)

@Serializable
data class JsonValue(val value: String) : JsonElement()

fun main() {
    val json = """{
        | "elements": [
        |     { "value": "element1" },
        |     { "value": "element2" },
        |     { "value": "element3" },
        |     { "value": "element4" }
        | ]
        |}""".trimMargin()

    val obj = Json.decodeFromString<JsonObject>(json)
    println(obj) // 输出：JsonObject(elements=[JsonValue(value=element1), JsonValue(value=element2), JsonValue(value=element3), JsonValue(value=element4)])

    val serializedJson = Json.encodeToString(obj)
    println(serializedJson) // 输出：{"elements":[{"value":"element1"},{"value":"element2"},{"value":"element3"},{"value":"element4"}]}
}