Perl关键字say在5.14.4版本中不起作用 [英] Perl keyword say is not working in version 5.14.4

问题描述

我的Perl版本是5.14.4，但是功能say不起作用.可能是什么问题?

My Perl version is 5.14.4, but the function say is not working. What might be wrong?

推荐答案

出于向后兼容的原因，默认情况下不可用.您可以使用

For backwards compatibility reasons, it's not available by default. You could use

CORE::say(...);          # Requires Perl 5.16.

，但最好添加以下其中一项:

but it's probably better to add one of the following:

use feature qw( say );   # Requires Perl 5.10.
use v5.10;               # All 5.10 features including "say".
use 5.010;               # Same as previous.
use v5.14;               # All 5.14 features including "say".
use 5.014;               # Same as previous.

这已记录.

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