Type inheritance 类型继承 ; 类继承 ; 对象类型继承
Type Inheritance Clause 类型继承子句
feathering type inheritance 羽型遗传
DTLL supports inheritance of type components (supertypes) and other features to support modularization and reuse of data type libraries.
DTLL支持类型成分的继承(超类型),以及其他支持数据类型库模块化和重用的特性。
That's what interface inheritance means; if you fulfill the contract of the more derived type then you are required to also fulfill the contract of the less derived type.
接口继承就是这样的;如果你要满足派生程度较高的类型的契约的话,你就必须要满足派生程度较低的类型。
There is inheritance, though: SDO understands an inheritance hierarchy among types, and given a property expecting a given type, you can assign a subtype.
但存在继承性:sdo理解类型间的继承层次结构,给定属性要求给定类型,可指派子类型。
应用推荐