第一层是上游“卖铲子”的硬件基础设施供应商，核心逻辑是提供淘金必需的”工具”，稳稳赚取技术红利。
* @param arr 待排序数组
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10. YotpoYotpo’s deep learning technology evaluates your customers’ product reviews to help you make better business decisions. It identifies key topics that customers mention related to your products—and their feelings toward them. The AI engine extracts relevant reviews from past buyers and presents them in smart displays to convert new shoppers. Yotpo also saves you time moderating reviews. The AI-powered moderation tool automatically assigns a score to each review and flags reviews with negative sentiment so you can focus on quality control instead of manually reviewing every post.
Credit: Samsung