正则表达式：先匹配特定字符，再匹配数字

Question

I am trying to match a specific character with a number followed by a full stop, ie V1. or V2.

I decided to start with just trying to match the character and number but it doesnt seem to be working, after numerous Google searches I believe this to be correct but obviously it isnt. TIA

var regex = new Regex("\b[V][0-9]\b")
var replaced = regex.Replace(path, string.Empty);

Answer 1

The below regex would match V plus the ollowing one or more numbers only if it's followed by a dot.

new Regex(@"\bV\d+\.")

Explanation:

• \\b Word boundary which matches between a word character and a non-word character.
• V Matches a literal V
• \\d+ Matches one or more digits. Use only \\d if the following number is a single digit number.
• \\. Matches a literal dot.