【LRU Cache实现】( List + hashtable | template | LRU )
自动化测试template//重载提取操作符&object){usingnamespacestd::literals::string_literals;if(!object)//optional::operatorbool()隐式转换return(ocache;//cachedefaultcapacity==64intcounter{32};//读写操作总次数srand((unsigned)tim