using System;

using System.Linq;

using System.Text.RegularExpressions;

public class Program

{

    public static void Main()

    {

        var text = "先秦兩漢";

        var result = ContainsNrc(text);

​

        Console.WriteLine(result);

    }

    private static bool ContainsNrc(string text)

    {

        // https://docs.microsoft.com/en-us/dotnet/standard/base-types/character-classes-in-regular-expressions?redirectedfrom=MSDN#supported-named-blocks

        const string namedBlocks = "IsCyrillic;IsCJKUnifiedIdeographs;IsKatakana;IsHiragana;IsHangulJamo;IsHangulSyllables";

        return namedBlocks?.Split(';').Any(

                category =>

                Regex.IsMatch(

                    text,

                    string.Format(@"\p{{{0}}}", category))) ?? false;

    }

}