每 5 个字符分割一个字符串 [英] Split a string every 5 characters

问题描述

假设我有一个很长的字符串:

Suppose I have a long string:

"XOVEWVJIEWNIGOIWENVOIWEWVWEW"

我如何拆分它以获得每 5 个字符后跟一个空格?

How do I split this to get every 5 characters followed by a space?

"XOVEW VJIEW NIGOI WENVO IWEWV WEW"

注意最后一个较短.

我可以做一个循环，我不断地计数并逐个字符地构建一个新的字符串，但肯定有更好的东西不是吗?

I can do a loop where I constantly count and build a new string character by character but surely there must be something better no?

推荐答案

使用正则表达式:

gsub("(.{5})", "\\1 ", "XOVEWVJIEWNIGOIWENVOIWEWVWEW")
# [1] "XOVEW VJIEW NIGOI WENVO IWEWV WEW"

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