This article will only focus on the class diagram and associated model elements (class, package, associations, attributes, and enumeration).

本文仅关注类图以及相关联的模型元素（类、包、关联、属性和枚举）。

youdao

This article will only focus on the class diagram and associated model elements (class, package, associations, attributes, and enumeration).

本文仅关注类图以及相关联的模型元素（类、包、关联、属性和枚举）。

youdao