来自c#中可变长度字符串的固定长度数字哈希码

using System;
using System.Security.Cryptography;

public static class HashHelper
{
    public static int GetHashCode(string input)
    {
        using (var murmur = MurmurHash.Create())
        {
            var hash = murmur.ComputeHash(System.Text.Encoding.UTF8.GetBytes(input));
            return BitConverter.ToInt32(hash, 0);
        }
    }
}