| 1. | It supports the standard create , retrieve , update , and delete operations , and it also supports cardinality constraints , complex relationships and inheritance structures , containment definitions , and a suite of attribute descriptions 这种代码支持标准的创建、获取、更新和删除操作,而且还支持元数约束、复杂关系和继承结构、屏蔽定义,以及一套属性描述。 |