如何在Scala中模式匹配对象

case class Person(name: String, age: Int)

val person: Person = Person("Alice", 25)

person match {
  case Person("Alice", age) => println(s"Hello Alice, your age is $age")
  case Person(name, age) => println(s"Hello $name, your age is $age")
  case _ => println("Unknown person")
}

val x: Any = 42

x match {
  case 0 => println("Zero")
  case 42 => println("Forty-two")
  case _ => println("Other")
}

val person: Person = Person("Bob", 30)

person match {
  case Person(name, age) => println(s"Hello $name, your age is $age")
  case _ => println("Unknown person")
}

val x: Any = 42

x match {
  case 0 | 1 => println("Zero or One")
  case 42 | 43 => println("Forty-two or Forty-three")
  case _ => println("Other")
}