添加项目文件。

HT.Cloud.Code/DistributedIDGenerator/ShortID/Internal/RandomHelpers.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;
+
+namespace HT.Cloud.Code
+{
+	/// <summary>
+	/// 随机数帮助类
+	/// </summary>
+	internal static class RandomHelpers
+	{
+		/// <summary>
+		/// 随机数对象
+		/// </summary>
+		private static readonly Random Random = new();
+
+		/// <summary>
+		/// 线程锁
+		/// </summary>
+		private static readonly object ThreadLock = new();
+
+		/// <summary>
+		/// 生成线程安全的范围内随机数
+		/// </summary>
+		/// <param name="min"></param>
+		/// <param name="max"></param>
+		/// <returns></returns>
+		public static int GenerateNumberInRange(int min, int max)
+		{
+			lock (ThreadLock)
+			{
+				return Random.Next(min, max);
+			}
+		}
+	}
+}