...tching 外连接抓取 (fetch一般翻译为"获取",v2翻译的时候,为了突出其主动获取的特点,翻译为"抓取") class hierarchy 类分层结构 inheritance hierarchy 继承层次 ..
基于20个网页-相关网页
这些实现解决的很多问题现在在结构上都有了更简洁的方法(通过构建相互影响类的分层结构)，语言也更具威力和表达性。
Many of the problems that the implementations solve structurally (by building a hierarchy of interacting classes) have more elegant solutions in languages that offer more power and expressiveness.
UML2(以及UML - RT)支持结构化的类和结构分层，此支持是处理大型系统时的基础。
UML2 (as well as UML-RT) has support for structured classes and structure hierarchy; this support is fundamental when dealing with large systems.
一个通用的体系结构策略就是把应用程序分层为不同的类类型。
A common architectural strategy is to layer your application into different class types.
应用推荐