添加项目文件。

HT.Cloud.Code/DistributedIDGenerator/Generators/IDistributedIDGenerator.cs

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+// -----------------------------------------------------------------------------
+// 让 .NET 开发更简单，更通用，更流行。
+// Copyright © 2020-2021 Furion, 百小僧, Baiqian Co.,Ltd.
+//
+// 框架名称：Furion
+// 框架作者：百小僧
+// 框架版本：2.7.9
+// 源码地址：Gitee： https://gitee.com/dotnetchina/Furion
+//          Github：https://github.com/monksoul/Furion
+// 开源协议：Apache-2.0（https://gitee.com/dotnetchina/Furion/blob/master/LICENSE）
+// -----------------------------------------------------------------------------
+
+namespace HT.Cloud.Code
+{
+	/// <summary>
+	/// 分布式 ID 生成器
+	/// </summary>
+	public interface IDistributedIDGenerator
+	{
+		/// <summary>
+		/// 生成逻辑
+		/// </summary>
+		/// <param name="idGeneratorOptions"></param>
+		/// <returns></returns>
+		object Create(object idGeneratorOptions = default);
+	}
+}

HT.Cloud.Code/DistributedIDGenerator/Generators/SequentialGuidIDGenerator.cs

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+// -----------------------------------------------------------------------------
+// 让 .NET 开发更简单，更通用，更流行。
+// Copyright © 2020-2021 Furion, 百小僧, Baiqian Co.,Ltd.
+//
+// 框架名称：Furion
+// 框架作者：百小僧
+// 框架版本：2.7.9
+// 源码地址：Gitee： https://gitee.com/dotnetchina/Furion
+//          Github：https://github.com/monksoul/Furion
+// 开源协议：Apache-2.0（https://gitee.com/dotnetchina/Furion/blob/master/LICENSE）
+// -----------------------------------------------------------------------------
+
+using System;
+using System.Security.Cryptography;
+
+namespace HT.Cloud.Code
+{
+	/// <summary>
+	/// 连续 GUID ID 生成器
+	/// <para>代码参考自：https://github.com/PomeloFoundation/Pomelo.EntityFrameworkCore.MySql/blob/ebe011a6f1b2a2a9709fe558cfc7ed3215b55c37/src/EFCore.MySql/ValueGeneration/Internal/MySqlSequentialGuidValueGenerator.cs </para>
+	/// </summary>
+	public class SequentialGuidIDGenerator : IDistributedIDGenerator
+	{
+		/// <summary>
+		/// 随机数生成器
+		/// </summary>
+		private static readonly RandomNumberGenerator _rng = RandomNumberGenerator.Create();
+
+		/// <summary>
+		/// 生成逻辑
+		/// </summary>
+		/// <param name="idGeneratorOptions"></param>
+		/// <returns></returns>
+		public object Create(object idGeneratorOptions = null)
+		{
+			// According to RFC 4122:
+			// dddddddd-dddd-Mddd-Ndrr-rrrrrrrrrrrr
+			// - M = RFC version, in this case '4' for random UUID
+			// - N = RFC variant (plus other bits), in this case 0b1000 for variant 1
+			// - d = nibbles based on UTC date/time in ticks
+			// - r = nibbles based on random bytes
+
+			var options = (idGeneratorOptions ?? new SequentialGuidSettings()) as SequentialGuidSettings;
+
+			var randomBytes = new byte[7];
+			_rng.GetBytes(randomBytes);
+			var ticks = (ulong)options.TimeNow.Ticks;
+
+			var uuidVersion = (ushort)4;
+			var uuidVariant = (ushort)0b1000;
+
+			var ticksAndVersion = (ushort)((ticks << 48 >> 52) | (ushort)(uuidVersion << 12));
+			var ticksAndVariant = (byte)((ticks << 60 >> 60) | (byte)(uuidVariant << 4));
+
+			if (options.LittleEndianBinary16Format)
+			{
+				var guidBytes = new byte[16];
+				var tickBytes = BitConverter.GetBytes(ticks);
+				if (BitConverter.IsLittleEndian)
+				{
+					Array.Reverse(tickBytes);
+				}
+
+				Buffer.BlockCopy(tickBytes, 0, guidBytes, 0, 6);
+				guidBytes[6] = (byte)(ticksAndVersion << 8 >> 8);
+				guidBytes[7] = (byte)(ticksAndVersion >> 8);
+				guidBytes[8] = ticksAndVariant;
+				Buffer.BlockCopy(randomBytes, 0, guidBytes, 9, 7);
+
+				return new Guid(guidBytes);
+			}
+
+			var guid = new Guid((uint)(ticks >> 32), (ushort)(ticks << 32 >> 48), ticksAndVersion,
+				ticksAndVariant,
+				randomBytes[0],
+				randomBytes[1],
+				randomBytes[2],
+				randomBytes[3],
+				randomBytes[4],
+				randomBytes[5],
+				randomBytes[6]);
+
+			return guid;
+		}
+	}
+}