线程queue

 import queue
 q = queue.Queue()      #模拟队列，先进先出
 q.put('first')
 q.put('second')
 q.put('third')

 print(q.get())
 print(q.get())
 print(q.get())

模拟队列

 import queue
 q = queue.LifoQueue()      #模拟堆栈，先进后出
 q.put('first')
 q.put('second')
 q.put('third')

 print(q.get())
 print(q.get())
 print(q.get())

模拟堆栈

 import queue
 q = queue.PriorityQueue()      #put进去一个元组，第一个元素设置优先级，越小越高
 q.put((10,'first'))
 q.put((30,'second'))
 q.put((20,'third'))

 print(q.get())
 print(q.get())
 print(q.get())

设置优先级