为检测当前语言环境是否使用了 UTF-8 编码。

to detect if the current locale uses the UTF-8 encoding.

youdao

例如，字符类[：punct：]表示当前语言环境中的所有标点字符。

For instance, the character class [: punct:] stands for all punctuation characters in the current locale.

youdao

您可以用命令locale charmap查询当前语言环境中字符编码的名称。

You can query the name of the character encoding in your current locale with the command locale charmap.

youdao