python常见队列queue分类

import queue

# 1.普通q
# 2.先进后出q
# 3.优先级q

普通Queue

q=queue.Queue(3)
q.put(1)
q.put(2)
q.put(3)
print(q.get())
print(q.get())
print(q.get())

输出:
1
2
3

# 先进后出，堆栈式队列
q = queue.LifoQueue(5)
q.put(1)
q.put(2)
q.put(3)
q.put(4)
print(q.get())

输出:
4

# 优先级Queue
q = queue.PriorityQueue()
q.put((10,'a'))
q.put((-1,'b'))
q.put((100,'c'))
print(q.get())
print(q.get())
print(q.get())

输出:
"b"
"a"
"c"