vb.net 从字符串中删除除空格以外的特殊字符
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Remove special characters from a string except whitespace
提问by Coding Duchess
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.
我正在寻找一个正则表达式来从字符串中删除所有特殊字符，除了空格。并且可能用一个空格替换所有的多个空格。
For example "[one@ !two three-four]"should become "one two three-four"
例如"[one@ !two three-four]"应该变成"one two three-four"
I tried using str = Regex.Replace(strTemp, "^[-_,A-Za-z0-9]$", "").Trim()but it does not work. I also tried few more but they either get rid of the whitespace or do not replace all the special characters.
我尝试使用 str = Regex.Replace(strTemp, "^[-_,A-Za-z0-9]$", "").Trim()但它不起作用。我还尝试了更多，但他们要么去掉空格，要么不替换所有特殊字符。
回答by vks
[ ](?=[ ])|[^-_,A-Za-z0-9 ]+
Try this.See demo.Replace by empty string.See demo.
试试这个。见empty string演示。替换为。见演示。
回答by missa
Use the regex [^\w\s]to remove all special characters other than words and white spaces, then replace:
使用正则表达式[^\w\s]删除除单词和空格以外的所有特殊字符，然后替换：
Regex.Replace("[one@ !two three-four]", "[^\w\s]", "").Replace(" ", " ").Trim
