正则表达式仅检查第一个字符字符串C＃ [英] Regex only checks first character in string C#

问题描述

为什么下面的方法只检查的第一个字符所提供的字符串中？

Why does the following method only check the first character in the supplied string?

public static bool IsUnicodeSms(string message)
{
   var strMap = new Regex(@"^[@£$¥èéùìòÇØøÅå_ÆæßÉ!""#%&'()*+,-./0123456789:;<=>? ¡ABCDEFGHIJKLMNOPQRSTUVWXYZÄÖÑܧ¿abcdefghijklmnopqrstuvwxyzäöñüà^{}\[~]|€]+$");
   return !strMap.IsMatch(message);
}

因此，例如，以下字符串返回false：ABCლ，而是ლABC返回true。

So for example the following string returns false: "abcლ" but "ლabc" returns true.

推荐答案

您已经逃离] 与 \] 键，也把 - 结尾：

You have to escape ] with \] and also put the - at the end:

改变这样的：

var strMap = new Regex(@"^[@£$¥èéùìòÇØøÅå_ÆæßÉ!""#%&'()*+,-./0123456789:;<=>? ¡ABCDEFGHIJKLMNOPQRSTUVWXYZÄÖÑܧ¿abcdefghijklmnopqrstuvwxyzäöñüà^{}\[~]|€]+$");

要这样：

var strMap = new Regex(@"^[@£$¥èéùìòÇØøÅå_ÆæßÉ!""#%&'()*+,./0123456789:;<=>? ¡ABCDEFGHIJKLMNOPQRSTUVWXYZÄÖÑܧ¿abcdefghijklmnopqrstuvwxyzäöñüà^{}\[~\]|€-]+$");

顺便说一句，你可以提高你的正则表达式及用途：

Btw, you can improve your regex and use:

var strMap = new Regex(@"^[@£$¥èéùìòÇØøÅå_ÆæßÉ!"#%&'()*+,./\w:;<=>? ¡ÄÖÑܧ¿äöñüà^{}\[~\]|€-]+$");

和使用忽略大小写的标志，如果不知道可能会帮助你缩短它更像是这一点：

And not sure if using the ignore case flag might help you to shorten it a little more like this:

var strMap = new Regex(@"(?i)^[@£$¥èéùìòÇøå_Ææß!"#%&'()*+,./\w:;<=>? ¡§¿äöñüà^{}\[~\]|€-]+$");

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