蘑菇云行动前传第16课：Scala implicits编程彻底实战及Spark源码鉴赏

package com.dtspark.scala.basics

/**

* Implicits隐式转换实战

*/

class Man(val name:String)

/*object Man{

implicit def man2SuperMan(man:Man)=new SuperMan(man.name)

}*/

object implicits{

implicit def man2SuperMan(man:Man)=new SuperMan(man.name)

}

class SuperMan(val name:String){

def MakeMiracles=println(this.name+"Wow,wow,wow...")

}

object HelloImplicits {

def main(args: Array[String]): Unit = {

//导入implicits包

import com.dtspark.scala.basics.implicits._

//实例化伴生类

val man=new Man("Scala")

//执行方法

man.MakeMiracles

}

implicit val content="hello"

talk("Scala")("Spark")

def talk(name:String)(implicit content:String)=println(name + ":" +content)

}

运行结果：

Scala:Spark

ScalaWow,wow,wow...