c# - Regular expression group matching not working

Question

What am I missing here?

Regex _validityRegEx = new Regex(@"^(<minStay>.{2})\/(<maxStay>.{2})$");
Match validityMatch = _validityRegEx.Match("--/3M);

I want two groups one containing the first two characters and one containing the second two after the /

Answer 1

请使用下一个模式（你错过了?）：

@"^(?<minStay>.{2})/(?<maxStay>.{2})$"

您可以访问这样的组：

var minStay = validityMatch.Groups["minStay"].Value
var maxStay = validityMatch.Groups["maxStay"].Value