千万pv的数据库缓存之解决方案。这种缓存思路可以存储大规模的列表，缓存命中率极高，因此可以承受超大规模的应用，但是需要技术人员根据自身业务逻辑来配置需要做散列的字段。-Pv database cache of thousands of solutions. This cache can store large list of ideas, a high cache hit ratio, it can withstand the application of large scale, but th

光伏(pv)带负载系统，可以输出UI UP曲线和负荷特性,对初学者有很强的适用性-Photovoltaic (pv) on load system can output the UP UI curve and load characteristic For a beginner has a strong applicability