本文介绍了保护继承的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
为什么要定义和提出保护和私有继承？我理解一些情况下，可以使用私人继承，但不推荐。如何保护继承？
Why protected and private inheritance are defined and proposed? I understand some cases private inheritance could be used but it is not recommended. How about protected inheritance?
任何人都可以提供一种保护继承是一种选择的情况？
Can anyone offer me an situation in which protected inheritance is a choice?
很少看到这个。
非常感谢！
推荐答案
私人继承通常用于mixins - 其中人们继承从基类获取功能，而不是因为is-a继承。
Private inheritance is usually used for mixins---where people inherit to get functionality from the base class, rather than because of "is-a" inheritance.
保护继承也可以用于mixins，其中混合功能也可用于下游类。
Protected inheritance can also be used for mixins, where the mixed-in functionality is to be available to downstream classes too.
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