使用 Scala 删除字符串中的空格
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Remove whitespaces in string with Scala
提问by madagascar
I want to remove the whitespaces in a string.
我想删除字符串中的空格。
Input: "le ngoc ky quang"
Output: "lengockyquang"
I tried the replaceand replaceAllmethods but that did't work.
我尝试了replace和replaceAll方法，但没有奏效。
回答by Nyavro
Try the following:
请尝试以下操作：
input.replaceAll("\s", "")
回答by Volodymyr Kozubal
You can filter out all whitespace characters.
您可以过滤掉所有空白字符。
"With spaces".filterNot((x: Char) => x.isWhitespace)
回答by elm
Consider splitting the string by any number of whitespace characters (\\s+) and then re-concatenating the split array,
考虑用任意数量的空白字符 ( \\s+)拆分字符串，然后重新连接拆分的数组，
str.split("\s+").mkString
回答by TheKojuEffect
val str = "le ngoc ky quang"
str.replace(" ", "")
//////////////////////////////////////
scala> val str = "le ngoc ky quang"
str: String = le ngoc ky quang
scala> str.replace(" ", "")
res0: String = lengockyquang
scala>
回答by azatprog
According to alvinalexanderit shows there how to replace more than white spaces to one space. The same logic you can apply, but instead of one space you should replace to empty string.
根据alvinalexander 的说法，它展示了如何将多个空格替换为一个空格。您可以应用相同的逻辑，但您应该替换为空字符串而不是一个空格。
input.replaceAll(" +", "")
