C#字符串不应仅包含空格或任何特殊字符，除了..'; ::“; [英] C# string should not contain only white spaces or any special character except ,.';:"

问题描述

我需要一个正则表达式模式来验证字符串不只包含空格(只包含多个空格)(例如:" .length = 4)并且不应该包含！@ $#％^& *()字符.

I need a regular expression pattern to verify string does not contain only white spaces(blank with multiple space only)(Ex: " ".length = 4) and should not contain !@$#%^&*() characters.

Regex regex =新的Regex(@. \ S +."); 这个检查空白.我需要在一个正则表达式模式中同时使用这两种条件.

Regex regex = new Regex(@".\S+."); This one checks for white spaces. I need both condition in one Regex pattern.

   Result
   ---------

• ":错误
• "ad af":正确
• "asd asd":是
• "asdf":是
• "asdf @ df dsfs":false
• #":假
• " " : false
• "ad af" : true
• " asd asd " : true
• " asdf " : true
• "asdf@df dsfs " : false
• " # " : false

推荐答案

作为单个正则表达式:

!Regex.IsMatch(input, "^\s+$|[!@$#%^&*()]");

这意味着:

^\s+$        //Is entirely composed of one or more whitespace characters 
|            //OR
[!@$#%^&*()] //Contains any one of the given special characters

此正则表达式返回您想要的真相的对立面(即，它查找所有空格或包含特殊字符的任何内容)，因此我们不使用!来满足您的要求

This regex returns the opposite of the truth you want (i.e. it looks for anything that is all whitespace OR does contain a special char), so we NOT it with ! to match your requirements

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