使用Python的list快速实现一个队列
import copy
class Queue(object):
def __init__(self, *arg):
super(Queue, self).__init__()
self.__queue = list(copy.copy(arg))
self.__size = len(self.__queue)
def enter(self, value):
self.__size += 1
self.__queue.append(value)
def exit(self):
if self.__size <= 0:
return None
else:
value = self.__queue[0]
self.__size -= 1
del self.__queue[0]
return value
def __len__(self):
return self.__size
def empty(self):
return self.__size <= 0
def __str__(self):
return "".join(["Queue(list=", str(self.__queue), ",size=", str(self.__size)])
if __name__ == '__main__':
l = list()
queue = Queue(l, 1, 2, 3, 4, 5)
queue.enter(1)
queue.exit()
print(queue.__str__())
