如何从Perl中的CSV文件中提取字段？ [英] How can I extract fields from a CSV file in Perl?

问题描述

我想从csv文件（830k记录）中提取特定字段并存储到哈希中。在使用任何外部方法时，有没有任何快速和容易的方法来处理Perl？

I want to extract a particular fields from a csv file (830k records) and store into hash. Is there any fast and easy way to do in Perl with out using any external methods?

如何实现？

推荐答案

使用 Text :: CSV_XS 。它速度快，适度灵活，并且经过非常好的测试。这些问题的答案是CPAN的。为什么花时间做一些不如很多人已经完善和测试的东西？

Use Text::CSV_XS. It's fast, moderately flexible, and extremely well-tested. The answer to many of these questions is something on CPAN. Why spend the time to make something not as good as what a lot of people have already perfected and tested?

如果你不想使用外部模块，这是一个愚蠢的异议，看看Text :: CSV_XS中的代码，然后这样做。我不断惊讶的是，人们认为，即使他们认为他们不能使用一个模块，他们不会使用已知和测试的解决方案作为同一任务的示例代码。

If you don't want to use external modules, which is a silly objection, look at the code in Text::CSV_XS and do that. I'm constantly surprised that people think that even though they think they can't use a module they won't use a known and tested solution as example code for the same task.

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