杂记

匹配数组的值 val atest: List[Int] = 1 :: List(2, 3, 4) println(atest) atest match { case header :+ a :+ b => println(header) println(a) println(b) case _ => println("Fail!") } //result List(1, 2, 3, 4) List(1, 2)

介绍scala自身类型及self=>常见用法