KOTLIN/JAVA从对象列表中删除对象的某些属性

data class Person(val name: String, val age: Int, val address: String)

fun main() {
    val personList = listOf(
        Person("John", 25, "123 Main St"),
        Person("Jane", 30, "456 Elm St"),
        Person("Bob", 35, "789 Oak St")
    )

    val updatedPersonList = mutableListOf<Person>()

    for (person in personList) {
        val updatedPerson = person.copy(address = null) // 删除address属性，设置为null
        updatedPersonList.add(updatedPerson)
    }

    // 打印更新后的对象列表
    for (person in updatedPersonList) {
        println(person)
    }
}