Что думаешь? Оцени!
if (len1 === 0) return [];
，这一点在heLLoword翻译官方下载中也有详细论述
"It's just a matter of having enough Artemis launches to build the infrastructure on the Moon by then," he adds, referring to Nasa's Artemis spaceflight programme that aims to send people and equipment to the Moon.
Higher in the sky, Uranus will be sitting in the constellation Taurus and won't set until around midnight, giving skywatchers with the right equipment a better chance of tracking it down.