String.Split VS. Regex.Split？ [英] String.Split VS. Regex.Split?

问题描述

如果我有一个基本的分隔符分隔的文本文件（比如 | 为例）它有所作为我是否使用字符串或正则表达式分裂？

If I have a delimited text file with a basic delimiter (say | for instance) does it make a difference whether I use a String or a Regex split?

我会看到一个与其它任何的性能提升？

Would I see any performance gains with one versus the other?

我假设你想使用 Regex.Split 如果你有逃脱分隔符，你不想拆就（ \ | 为例）。

I am assuming you would want to use Regex.Split if you have escaped delimiters that you don't want to split on (\| for example).

还有没有其他的理由来使用 Regex.Split VS String.Split ？

Are there any other reasons to use Regex.Split vs String.Split?

推荐答案

Regex.Split能力更强，但对于基本delimitting安排（使用将不存在任何其他地方的字符串中的字符），该String.Split功能是非常容易的工作。

Regex.Split is more capable, but for an arrangement with basic delimitting (using a character that will not exist anywhere else in the string), the String.Split function is much easier to work with.

至于性能的话，你就必须创建一个测试和尝试。但是，不要pre-优化，除非你的知道的，这个功能将是一些必要的流程中的瓶颈。

As far as performance goes, you would have to create a test and try it out. But, don't pre-optimize, unless you know that this function will be the bottleneck for some essential process.

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