Kotlin合并函数

val list1 = listOf(1, 2, 3)
val list2 = listOf(4, 5, 6)
val mergedList = list1.plus(list2)
println(mergedList) // 输出：[1, 2, 3, 4, 5, 6]

val map1 = mapOf("key1" to "value1", "key2" to "value2")
val map2 = mapOf("key3" to "value3", "key4" to "value4")
val mergedMap = map1.plus(map2)
println(mergedMap) // 输出：{key1=value1, key2=value2, key3=value3, key4=value4}

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

fun Person.merge(other: Person): Person {
    return Person(this.name + other.name, this.age + other.age)
}

val person1 = Person("Alice", 25)
val person2 = Person("Bob", 30)
val mergedPerson = person1.merge(person2)
println(mergedPerson) // 输出：Person(name=AliceBob, age=55)