1 package big.data.analyse.scala 2 3 /** 4 * 链式编程原理 5 * Created by zhen on 2018/12/16. 6 */ 7 class Computer{def code = this} 8 class PC extends Computer{def portable = this} 9 /** 10 * 使用type可以根据当前情况转化类型实现链式编程 11 */ 12 class Car{def run : this.type = this} 13 class Roadster extends Car{def luxury : this.type = this} 14 object Lsbc { 15 def main (args: Array[String]) { 16 val pc = new PC() 17 //pc.code.portable // Cannot resolve symbol portable 18 val roadster = new Roadster() 19 roadster.run.luxury 20 } 21 }
原文地址:https://www.cnblogs.com/yszd/p/10128065.html
时间: 2024-10-11 20:13:19