空对象 [英] null objects

问题描述

什么是空对象

推荐答案

什么是空对象

这是一个简单的问题，答案可能非常复杂.例如，参见:
https://en.wikipedia.org/wiki/Null_Object_pattern

That is a simple question that can have a very complex answer.  See, for instance:
https://en.wikipedia.org/wiki/Null_Object_pattern

如果您提供一些上下文信息(例如带有错误消息的示例)，则可能可以做出更具体的注释.例如，当实际上意味着无对象"时，经常使用空对象"一词.

If you provide some context (an example with an error message, perhaps) then it may be possible to make a more specific comment. For instance, the term 'null object' is often used when what is actually meant is 'no object'.

这篇关于空对象的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！