使用C#从字符串中删除JavaScript注释

using System;
using System.Text.RegularExpressions;

public class Program
{
    public static void Main()
    {
        string input = "var x = 5; // This is a comment";
        string output = RemoveJavaScriptComments(input);
        Console.WriteLine(output); // Output: var x = 5;
    }

    public static string RemoveJavaScriptComments(string input)
    {
        string pattern = @"/\*.*?\*/|//.*?$|\/\/.*?$";
        return Regex.Replace(input, pattern, "", RegexOptions.Multiline);
    }
}