fun main() {
    val list = listOf("Jason", "Jack", "Jacky")
    val mutableListOf = mutableListOf("Jason", "Jack", "Jacky")
    mutableListOf.add("狗蛋")
    println(mutableListOf)
    //相當于add
    mutableListOf += "張三"
    println(mutableListOf)
    // 相當于remove
    mutableListOf -= "狗蛋"
    println(mutableListOf)
    //根據條件一出
    mutableListOf.removeIf{ it.contains("J")}
    println(mutableListOf)
}

非常的時尚