// 入栈后栈仍保持单调递增（因为小的都被弹走了）
print(p.x); // 30。新收录的资料是该领域的重要参考
。新收录的资料对此有专业解读
In Dubai, several blasts were heard Saturday morning and the government said it had activated air defenses. Passengers waiting for flights at Dubai International Airport were ushered into train tunnels.
Purple: ___ Chicken，推荐阅读新收录的资料获取更多信息
Documentation on the channel endpoint: https://developers.google.com/youtube/v3/guides/implementation/channels