无论采用哪种方法论，清晰的目标定义和有效的沟通是成功的基础。
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Games and physics simulations need to detect which objects are touching or overlapping. With nnn objects, checking every pair is O(n2)O(n^2)O(n2) comparisons, which gets expensive fast. A hundred objects means roughly 5,000 pair checks. A thousand means nearly 500,000.，详情可参考下载安装 谷歌浏览器 开启极速安全的 上网之旅。
Путешественники отмечают, что в северных странах действительно больше активностей, и поэтому отпуск кажется более насыщенным，这一点在WPS官方版本下载中也有详细论述
Unix pipes are perhaps the purest expression of this idea: