Python3实现队列
class MyQueue:
def __init__(self):
self.__arr = []
def push(self, x: int) -> None:
self.__arr.append(x)
def pop(self) -> int:
return self.__arr.pop(0)
def peek(self) -> int:
return self.__arr[0]
def empty(self) -> bool:
return len(self.__arr)==0