Scala链式编程内幕

 package big.data.analyse.scala

 /**
   * 链式编程原理
   * Created by zhen on 2018/12/16.
   */
 class Computer{def code = this}
 class PC extends Computer{def portable = this}
 /**
   * 使用type可以根据当前情况转化类型实现链式编程
   */
 class Car{def run : this.type = this}
 class Roadster extends Car{def luxury : this.type = this}
 object Lsbc {
   def main (args: Array[String]) {
     val pc = new PC()
     //pc.code.portable // Cannot resolve symbol portable
     val roadster = new Roadster()
     roadster.run.luxury
   }
 }