Haskell中的简单调试 [英] Simple debugging in Haskell
本文介绍了Haskell中的简单调试的处理方法,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
print
语句丢弃它。然而,在Haskell中这样做会改变语义,我必须将函数签名更改为具有 IO
的那些函数。 Haskellers如何处理?我可能会缺少一些明显的东西。请启用。解决方案
阅读这个。您可以使用 Debug.Trace.trace
代替打印语句。
I am new to Haskell. Previously I have programmed in Python and Java. When I am debugging some code I have a habit of littering it with print
statements in the middle of code. However doing so in Haskell will change semantics, and I will have to change my function signatures to those with IO
stuff. How do Haskellers deal with this? I might be missing something obvious. Please enlighten.
解决方案
Read this. You can use Debug.Trace.trace
in place of print statements.
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