{ antialias: true }：开启了抗锯齿，让边缘光滑，不再有毛刺。
Travel gets easier the moment you stop relying entirely on real-time translations. Reading signs, ordering food, or asking directions becomes less of a performance and more of a conversation — which is exactly what Babbel was designed to teach.，推荐阅读im钱包官方下载获取更多信息
优势：时间复杂度O(d*(n+k))，d为位数，适合位数少的整数，这一点在safew官方下载中也有详细论述
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Фото: Павел Родимов / Фотобанк Лори