添加项目文件。

UIShare/GlobalVariable/ScopedContext.cs

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+using MaterialDesignThemes.Wpf;
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Diagnostics;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using System.Threading.Tasks;
+using UIShare.UIViewModel;
+
+namespace UIShare.GlobalVariable
+{
+    public class ScopedContext
+    {
+        private static readonly Random _randomSeed = new Random();
+        public ProgramModel Program { get; set; } = new();
+        public String SelectedStepList { get; set; } = "主程序";
+        public string CurrentFilePath { get; set; }
+        public bool? IsStop { get; set; }
+        public bool SingleStep { get; set; }
+        public string RunState { get; set; } = "运行";
+        public TimeSpan RunningTime { get; set; } = TimeSpan.Zero;
+        public Stopwatch SW { get; set; } = new();
+        public bool IsTerminate { get; set; } = false;
+        public ObservableCollection<Assembly> Assemblies { get; set; } = new();
+        public PackIconKind RunIcon { get; set; } = PackIconKind.Play;
+        public StepModel SelectedStep { get; set; }
+        public ParameterModel SelectedParameter { get; set; }
+        // 【新增测试属性】：每个实例被 new 出来时独一无二的随机身份
+        // 证 ID
+        public int DebugRandomId { get; private set; }
+        public ScopedContext()
+        {
+            lock (_randomSeed)
+            {
+                // 每次诞生一个新上下文，就在 10000 到 99999 之间随机摇一个数
+                DebugRandomId = _randomSeed.Next(10000, 100000);
+            }
+        }
+    }
+}