面向对象设计有7个主要原则。（ ）要依赖于抽象，不是具体实践。
- A.迪米特原则
- B.里式替换原则
- C.依赖倒置原则
- D.开放-封闭原则
正确答案及解析
正确答案
解析
里式替换原则：子类可以替换父类迪米特原则：一个对象应当对其他对象有尽可能少的了解。依赖倒置原则：要依赖于抽象，不是具体实践。对接口进行编程，不要对实现编程。
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