将字符串拆分为一个或多个空格的子字符串 [英] Split string into substrings on one or more whitespaces

问题描述

我想在出现一个或多个空格(制表符、空格...)的位置将一个字符串拆分为多个子字符串.在strsplit()的文档中 它说，分割被解释为一个正则表达式.

I want to split a string into several substrings at those positions where one or more whitespaces (tab, space,...) occur. In the documentation of strsplit() it says, that split is interpreted as a regular expression.

因此我尝试了以下方法，但没有用:

Thus i tried the following, which did not work:

test = "123 nnn      dddddd"
strsplit(test, "[:space:]+")

它只返回:

[[1]]
[1] "123 nnn      dddddd"

但应该返回:

[[1]]
[1] "123" "nnn" "dddddd"

我的代码有什么问题?

推荐答案

尝试

strsplit(test, '\\s+')
[[1]]
[1] "123"    "nnn"    "dddddd"

\\s 将匹配所有空白字符.

\\s will match all the whitespace characters.

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