“顶级评估”是什么意思？
[英]What does “top-level evaluation” mean?
问题描述
What does "top-level evaluation" mean? 
“顶级评估”是什么意思？
This term was not defined in the text it was mentioned in. I do not want to tell the specific context, because I am interested only in generic explanations. 该术语未在提到的文本中定义。我不想透露具体的上下文，因为我只对通用解释感兴趣。
1 个解决方案
解决方案1
0 2013-11-23 12:13:51
It might have multiple meanings depending on the context, but I think it means the evaluation of the top-level expression. 根据上下文的不同，它可能有多种含义，但我认为这意味着对顶级表达的评估。 For example, the entire body of the main function in a Haskell program, is one expression (of type IO () ) and is the top-level expression of the program, so evaluating that expression would constitute top-level evaluation. 例如，Haskell程序中main功能的整个主体是一个表达式（类型为IO () ），并且是该程序的顶级表达式，因此，对该表达式进行评估将构成顶级评估。
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