Regex replace expression

[William A Wang]

I currently try to use Regex to replace the text to lower case for Html tags in string, here are my test codes:

using System;
using System.Text.RegularExpressions;

namespace ConsoleApp2
{
class Program
{
public static void Main()
{
string source = "<Div>Someone is here</Div>";
Regex reg = new Regex(@"<(\/?)(\w+)>");
Console.WriteLine(reg.Replace(source, @"<$1\L$2>"));
}
}
}

The console output result is: <\LDiv>Someone is here</\LDiv>, it seems it made the \L to a string.

The same match expression and replace expression cloud work correctly in this website: Regex101 - online regex editor and debugger


BR.

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