最快的C#字符串查询方法

就是使用HashSort或者SortedSet

class Program
{
    private static readonly Random random = new Random((int)DateTime.Now.Ticks);

    static void Main(string[] args)
    {
        Console.WriteLine("Creating Lists...");
        var stringList = new List<string>();
        var hashList = new HashSet<string>();
        var sortedList = new SortedSet<string>();

        var searchWords1 = new string[3];
        int ndx = 0;

        for (int x = 0; x < 1000000; x++)
        {
            string str = RandomString(10);

            if (x == 5 || x == 500000 || x == 999999)
            {
                str = "Z" + str;
                searchWords1[ndx] = str;
                ndx++;
            }
            stringList.Add(str);
            hashList.Add(str);
            sortedList.Add(str);
        }

        Console.WriteLine("Lists created!");
        var sw = new Stopwatch();
        sw.Start();
        bool search1 = stringList.Contains(searchWords1[2]);
        sw.Stop();
        Console.WriteLine("List<T> {0} ==> {1}ms", search1, sw.ElapsedMilliseconds);
        sw.Reset();
        sw.Start();
        search1 = hashList.Contains(searchWords1[2]);
        sw.Stop();
        Console.WriteLine("HashSet<T> {0} ==> {1}ms", search1, sw.ElapsedMilliseconds);
        sw.Reset();
        sw.Start();
        search1 = sortedList.Contains(searchWords1[2]);
        sw.Stop();
        Console.WriteLine("SortedSet<T> {0} ==> {1}ms", search1, sw.ElapsedMilliseconds);
    }

    private static string RandomString(int size)
    {
        var builder = new StringBuilder();
        char ch;
        for (int i = 0; i < size; i++)
        {
            ch = Convert.ToChar(Convert.ToInt32(Math.Floor(26 * random.NextDouble() + 65)));
            builder.Append(ch);
        }

        return builder.ToString();
    }
}

Creating Lists...
Lists created!
List<T> True ==> 15ms
HashSet<T> True ==> 0ms
SortedSet<T> True ==> 0ms