耿鸭的幸福生活

class Node: def __init__(self, data): self.data = data self.next = None class Stack: def __init__(self): self.__head = None def push(self, data): node = ...

class Node: def __init__(self, data): self.data = data self.next = None class Queue: def __init__(self): self.__head = None self.__tail = None def push(s...