进程线程_队列

（1）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())
'''
first
second
third
'''

 

（2）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())
'''
third
second
first
'''

 

（3）优先级别:数字越小，优先级别越高

import queue
q=queue.PriorityQueue()
q.put((20,"first"))
q.put((10,"second"))
q.put((30,"third"))
print(q.get())
print(q.get())
print(q.get())
'''
(10, 'second')
(20, 'first')
(30, 'third')