队列

 1 import scala.collection.immutable.Queue
 2 import scala.collection.mutable
 3 
 4 object Test18_Queue {
 5   def main(args: Array[String]): Unit = {
 6     //创建一个可变队列
 7     val queue = new mutable.Queue[String]()
 8     queue.enqueue("a", "b", "c")
 9     //入队
10     println(queue)
11     //出队，先进先出
12     println(queue.dequeue())
13     println(queue)
14     println(queue.dequeue())
15     println(queue)
16 
17     queue.enqueue("d", "e")
18     println(queue.dequeue())
19 
20     //不可变队列
21     val queue1 = Queue("a", "b", "c")
22     val queue2 = queue1.enqueue("d")
23     println(queue1)
24     println(queue2)
25   }
26 }

标签：Queue,val,队列,dequeue,queue,enqueue,println
来源： https://www.cnblogs.com/xiao-wang-tong-xue/p/16301861.html