Detailed introduction to python3 Queue (one-way queue)

Create queue

import queue
q = queue.Queue()

empty (if the queue is empty, return True)

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import queue
q = queue.Queue()print(q.empty())#输出：True

full (if If the queue is full, return True)

import queue
q = queue.Queue(1) #指定队列大小q.put('a')print(q.full())#输出：True

put (put an element into the queue) get (remove an element from the queue) first-in-first-out principle

import queue
q = queue.Queue()
q.put('a')
q.put('b')print(q.get())#输出：a

get_nowait (remove an element immediately, without waiting)

#占位

put_nowait (put an element immediately, without waiting)

#占位

join(block the calling thread until all tasks in the queue are processed)

#占位

qsize(return to the queue Number of elements)

import queue
q = queue.Queue()
q.put('a')
q.put('b')print(q.qsize())#输出：2

task_done (After completing a task, send a signal to the queue where the task has been completed)

#占位

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