在Lua中用字符分割字符串 [英] Split a string by a character in Lua

问题描述

我有像"ABC-DEF"这样的字符串，我需要用"-"字符将它们分割，然后将两个部分分别分配给一个变量.在Ruby中，我会这样做:

I have strings like "ABC-DEF" and I need to split them by the "-" character and assign each of the two parts to a variable. In Ruby, I would do it like:

a, b = "ABC-DEF".split('-')

显然，Lua没有这么简单的方法.经过一番挖掘，我找不到一种简短的方法来实现自己的目标.我提到我是Lua的完全新手，我需要在Redis脚本中使用它(因此，它的大小应该确实很小，如果可能的话，只能写一个).

Apparently, Lua doesn't have such an easy way. After some digging, I couldn't find a short and concise way to achieve what I'm after. I mention I am a complete newbie to Lua and I need to use it in a script for Redis (so it should indeed be small, a one liner if possible).

推荐答案

使用模式匹配:

a, b = string.match("ABC-DEF", "(.*)%-(.*)")

请注意，-是一个魔法人物，因此必须使用%对其进行转义.

Note that - is a magic character, so it must be escaped with %.

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