检查字符是否是字母 [英] check if char isletter

问题描述

我想检查一个字符串是否只包含正确的字母.我为此使用了 Char.IsLetter.我的问题是，当有像 é 或 á 这样的字符时，它们也被认为是正确的字母，这不应该是.

i want to check if a string only contains correct letters. I used Char.IsLetter for this. My problem is, when there are chars like é or á they are also said to be correct letters, which shouldn't be.

是否有可能将字符检查为正确的字母 A-Z 或 a-z 而没有像 á 这样的特殊字母?

is there a possibility to check a char as a correct letter A-Z or a-z without special-letters like á?

推荐答案

bool IsEnglishLetter(char c)
{
    return (c>='A' && c<='Z') || (c>='a' && c<='z');
}

您可以将此作为扩展方法:

You can make this an extension method:

static bool IsEnglishLetter(this char c) ...

这篇关于检查字符是否是字母的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！