从字符串中删除除空格以外的特殊字符 [英] Remove special characters from a string except whitespace

问题描述

我正在寻找一个正则表达式来从字符串中删除除空格之外的所有特殊字符.并且可能用一个空格替换所有多个空格.

I am looking for a regular expression to remove all special characters from a string, except whitespace. And maybe replace all multi- whitespaces with a single whitespace.

例如"[one@ !twothree-four]" 应该变成"一二三四"

我尝试使用 str = Regex.Replace(strTemp, "^[-_,A-Za-z0-9]$", "").Trim() 但它不起作用.我还尝试了更多，但它们要么去掉空格，要么不替换所有特殊字符.

I tried using str = Regex.Replace(strTemp, "^[-_,A-Za-z0-9]$", "").Trim() but it does not work. I also tried few more but they either get rid of the whitespace or do not replace all the special characters.

推荐答案

[ ](?=[ ])|[^-_,A-Za-z0-9 ]+

试试这个.看演示.替换为空字符串.看演示.

Try this.See demo.Replace by empty string.See demo.

http://regex101.com/r/lZ5mN8/69

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