Scala 多继承顺序

object TraitOrder extends App {

  trait Logger {
    println("Logger")
  }

  trait FileLogger extends Logger {
    println("FileLogger")
  }

  trait Closable {
    println("Closable")
  }
  class Person{
    println("Constructing Person...")
  }

  class Student extends Person with FileLogger with Closable {
    println("Constructing Student ...")
  }

  new Student
}