Python并发编程：多线程-线程queue

一  线程queue

有三种不同的用法

class queue.Queue(maxsize=0)　　# 队列：先进先出

import queue

q = queue.Queue()
q.put('first')
q.put('second')
q.put('third')

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


结果：
first
second
third

　　

class queue.LifoQueue(maxsize=0)　　# 堆栈：后进先出

import queue

q = queue.LifoQueue()

q.put('first')
q.put('second')
q.put('third')

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


结果：

third
second
first

　　

class queue.PriorityQueue(maxsize=0) #优先级队列：存储数据时可设置优先级的队列

import queue

q = queue.PriorityQueue()
q.put((20, 'a'))
q.put((10, 'b'))
q.put((30, 'c'))

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