[color=#FF0000]xxx = true; // Remove old files[/color]

// 5 minutes execution time
afdsfs
        
// Uncomment this one to fake upload time
// asdf

af

   // Uncomment this one to fake upload time

fda

     // Uncomment this one to fake upload time333

        string r = Regex.Replace(s, @"(?m)^\s*//.*$", "");

------解决方案--------------------
探讨


C# code

            string pat = @"(?is)^([^\S]*)//[^\r\n]*";
            Regex rx = new Regex(pat);
            string replacestr = rx.Replace(input, "$1");//input你的htmlcode


------解决方案--------------------
str=Regex.Replace(str,"(?m)^\\s*//.*","");