Queue对象具有collections.deque对象属性。关于访问deque元素的效率，请参阅Python文档。如果您需要随机访问元素，列表可能是一个更好的用例。
导入队列q=队列。队列((q.put(5(q.put(7(
print(q.get(((删除队列前面的元素。如何打印此元素而不将其删除？有可能这样做吗？
import queue
if __name__ == "__main__":
q = queue.Queue()
q.put(5)
q.put(7)
"""
dir() is helpful if you don't want to read the documentation
and just want a quick reminder of what attributes are in your object
It shows us there is an attribute named queue in the Queue class
"""
for attr in dir(q):
print(attr)
#Print first element in queue
print("nLooking at the first element")
print(q.queue[0])
print("nGetting the first element")
print(q.get())
print("nLooking again at the first element")
print(q.queue[0])
注意：我已经缩写了dir迭代器的输出
>>>
put
put_nowait
qsize
queue
task_done
unfinished_tasks
Looking at the first element
5
Getting the first element
5
Looking again at the first element
7
>>>