正则表达式提取字母的首次出现

Question

I need a regex that will return the q in this string:

131531 q32135 1aaa31cffv;fvVfsda23213543132HHH

string somestring = "12 3654th v6 54 68 sdfsdf";
string pattern = @"(^[0-9])*([a-z])";
string letter = Regex.Match(somestring, pattern).ToString();
string firstletter = letter.Substring(0,letter.Length);
Console.WriteLine("First Letter: " + firstletter);

Answer 1

我觉得这很简单：

/[a-z]/i

Answer 2

尝试使用以下正则表达式：

/^.*?([a-zA-Z])/

Answer 3

/([a-z]).*/i

http://regexr.com?3009o

Answer 4

So, I am not sure why your regex is working. The substring part is also unnecessary, because in letter you only have the letter "t".

So try this (as Roderick already suggested (already upvoted)), because Match is automatically returning the first match

string somestring = "12 3a654th v6 54 68 sdfsdf";
string pattern = @"[a-z]";

string letter = Regex.Match(somestring, pattern).ToString();

Console.WriteLine("Letter: " + letter);