类之间的依赖关系，对于面向对象系统分析、设计和测试都有重要的意义。

The dependency relations among classes are important for object-oriented analysis, design and test.

youdao

类之间的依赖关系，对于面向对象系统分析、设计和测试都有重要的意义。

The dependency relations among classes are important for object-oriented analysis, design and test.

youdao