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

   }

 }