scala-泛型

//实例化之后使用get方法必须传入相同类型的参数
class A[T](x: T) {
  def get(x: T) {
    print(x)
  }
}

var a1 = new A(1)
a1.get(1)

//上边界泛型实现

class Persion(name: String) {
  def prn = println("name:" + name)

  def get(p: Persion) {
    prn
    p.prn
  }
}

class Worker(name: String) extends Persion(name) {
  var get1 = println("函数")
}

def process[T <: Worker](p: T, p1: T) {
  //[T <: Worker]要求必须在worker自己以及子类中
  p.get(p1)
}

def process1[T <: Persion](p: T, p1: T) {
  //[T <: Persion]要求必须在Persion自己以及子类中
  p.get(p1)
}

def process3[T >: Persion](p: T) {
  //[T >: Persion]要求必须在Persion自己以及继承的父类中
  (p.asInstanceOf[Persion]).prn
  if (p.getClass == classOf[Persion]) {
    print("Persion！")
  } else if (p.getClass == classOf[Worker]) {
    print("Worker！")
  } else {
    print("未匹配！")
  }
}

var p1 = new Worker("abc")
var p2 = new Worker("mnb")

process(p1, p2)

var p3 = new Persion("ab1c")
var p4 = new Persion("mn1b")
process1(p3, p4)

var p5 = new Persion("a8899")
var p6 = new Worker("a8899!!")
process3(p5)
process3(p6)