fun main(arg: Array<String>) { val map = mapOf("name" to "tom", ) val user = user(map) println(user.name) println(user.age) } class user(var map:Map<String,Any>){ val name:String by map val age:Int by map } 使用场景:将map中key-va
1.TreeMap介绍 TreeMap是一个通过红黑树实现有序的key-value集合. TreeMap继承AbstractMap,也即实现了Map,它是一个Map集合 TreeMap实现了NavigableMap接口,它支持一系列的导航方法, TreeMap实现了Cloneable接口,它可以被克隆 TreeMap introduction:A Red-Black tree based NavigableMap implementation. The map is sorted accordi