使用内存缓存下，获取时，如果数据是个对象或者数组，需要对数据进行深度拷贝
使用内存缓存下，获取时，如果数据是个对象或者数组，需要对数据进行深度拷贝

75team/thinkjs,74sharlock/thinkjs,lukw00/thinkjs,maxzhang/thinkjs,maxzhang/thinkjs,snadn/thinkjs,akira-cn/thinkjs,thinkjs/thinkjs,Qihoo360/thinkjs,lukw00/thinkjs,akira-cn/thinkjs,75team/thinkjs,maxzhang/thinkjs,75team/thinkjs,akira-cn/thinkjs,74sharlock/thinkjs