版权声明:不自见故明;不自是故彰;不自伐故有功;不自矜故长; https://blog.csdn.net/LightUpHeaven/article/details/84646216
8.1.自封装字段(Self Encapsulate Field)
8.2.以对象取代数据值(Replace Data Value with Object)
8.3.将值对象改为引用对象(Change Value to Reference)
8.4.将引用对象改为值对象(Change Reference to Value)
8.5.以对象取代数据(Replace Array with Object)
8.6.复制“被监视数据”(Duplicate Observed Data)