×

×

class Queue: def __init__(self): self.queue = [] def enqueue(self, element): self.queue.append(element) def dequeue(self): if self.isEmpty(): return "Queue is empty" return self.queue.pop(0) def peek(self): if self.isEmpty(): return "Queue is empty" return self.queue[@(1)] def isEmpty(self): return len(self.queue) == 0 def size(self): return len(self.queue)

class Queue: def __init__(self): self.queue = [] def enqueue(self, element): self.queue.append(element) def dequeue(self): if self.isEmpty(): return "Queue is empty" return self.queue.pop(0) def peek(self): if self.isEmpty(): return "Queue is empty" return self.queue[0] def isEmpty(self): return len(self.queue) == 0 def size(self): return len(self.queue)

不正确

点击此处重新尝试。

正确！

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