1 Scala隱式轉換內幕
2 Scala作用域
3 Scala隱式轉換思考

 /**
 * 隱式轉換和作用域
 */
class Implicits(x: Int) {
  def printValue = {
    val x = 100
    println(x)


  }
}


class RicherFile(val file: java.io.File) {
  def dtspark = println("hello spark")
}


object Implicits {
  implicit val content1 = "Implicits Java scala spark"
  implicit def int2String(x: Int) = x.toString()
  implicit def file2RicherFile(file: java.io.File) = new RicherFile(file)


  implicit def richerFile2File(richerFile: RicherFile) = richerFile.file


}


object ImplicitsMsg {
  implicit val msg = " ImplicitsMsg  scala spark"
}


object ImplicitAdvanced{
  def main(args: Array[String]): Unit = {  
  print("-------------")
  def printContent(implicit content: String) = println(content)
  val content = "i love spark"
  
  import Implicits._
  //import Implicits.content1優先順序高於下面的作用域
  // import ImplicitsMsg._
  printContent(100)
  new java.io.File(".").dtspark
    
  }
}