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hello-algo/codes/python/chapter_stack_and_queue/queue.py

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'''
File: queue.py
Created Time: 2022-11-29
Author: Peng Chen (pengchzn@gmail.com)
'''
import os.path as osp
import sys
sys.path.append(osp.dirname(osp.dirname(osp.abspath(__file__))))
from include import *
import queue
if __name__ == "__main__":
""" 初始化队列 """
queue = queue.Queue()
""" 元素入队 """
queue.put(1)
queue.put(3)
queue.put(2)
queue.put(5)
queue.put(4)
print("队列 queue = ", queue.queue)
""" 访问队首元素 """
peek = queue.queue[0]
print("队首元素 peek = ", peek)
""" 元素出队 """
get = queue.get()
print("出队元素 get = ", get)
print("出队后 queue = ", queue.queue)
""" 获取队列的长度 """
size = queue.qsize()
print("队列长度 size = ", size)
""" 判断队列是否为空 """
is_empty = queue.empty()
print("队列是否为空 = ", is_empty)