上世纪80年代初，受邓公邀请，松下成为首家进入中国内地的外资企业，由此也开始了日本家电产品在内地如日中天的时代，东芝、日立、索尼等一批日本电子企业巨头在松下之后纷纷入华，也让日本彩电成为了80、90年代国人追捧的时髦之选。
// 测试用例（可直接运行验证）
，详情可参考safew官方下载
What are the best things to buy during Amazon's Big Spring sale?An Amazon sale means some of the best savings will be on Amazon devices like Echos, Fire TVs, and Kindles, but the reach of its spring sale goes far beyond that. With the focus on the spring season, expect to see lots of savings on outdoor gear like furniture, grills, tents, and power stations. Plus, there will be plenty of classic big sale savings on TVs, laptops, headphones, and tablets.，推荐阅读爱思助手下载最新版本获取更多信息
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// 易错点6：返回整个数组（如this.res）→ 不符合题目要求，题目要求返回单个数值