diff --git a/src/IFoxCAD.Cad/ExtensionMethod/JigExTransient.cs b/src/IFoxCAD.Cad/ExtensionMethod/JigExTransient.cs
new file mode 100644
index 0000000000000000000000000000000000000000..ce767f2ebc67daa70079109db263e7ca504c9f8f
--- /dev/null
+++ b/src/IFoxCAD.Cad/ExtensionMethod/JigExTransient.cs
@@ -0,0 +1,174 @@
+#if !ac2008
+namespace IFoxCAD.Cad;
+public class JigExTransient : IDisposable, IEnumerable<Entity>
+{
+    readonly HashSet<Entity> _entities;//对象容器
+    readonly IntegerCollection _integerCollection;
+    readonly TransientDrawingMode _drawingMode = TransientDrawingMode.DirectShortTerm;//默认绘图模式
+    public HashSet<Entity> Entities { get { return _entities; } }
+    /// <summary>
+    /// 默认构造函数
+    /// </summary>
+    JigExTransient()
+    {
+        _entities = new();
+        _integerCollection = new();
+    }
+
+    /// <summary>
+    /// 创建瞬态容器
+    /// </summary>
+    /// <param name="tdm">绘图模式</param>
+    /// <param name="ents">对象</param>
+    public JigExTransient(TransientDrawingMode tdm=TransientDrawingMode.DirectShortTerm) : this()=> _drawingMode = tdm;
+
+    /// <summary>
+    /// 创建瞬态容器
+    /// </summary>
+    /// <param name="tdm">绘图模式</param>
+    /// <param name="ents">对象</param>
+    public JigExTransient(IEnumerable<Entity> ents,
+                        TransientDrawingMode tdm = TransientDrawingMode.DirectShortTerm) : this()
+    {
+        _drawingMode = tdm;
+        this.Add(ents);
+    }
+    void AddEnts(TransientDrawingMode tdm,IEnumerable<Entity> ents)
+    {
+        var num = ents.Count();
+        for (int i = 0; i < num; i++)
+        {
+            var ent = ents.ElementAt(i);
+            if (_entities.Contains(ent)) break;
+            _entities.Add(ent);
+            TransientManager.CurrentTransientManager.AddTransient(ent, tdm, 128, _integerCollection);
+        }
+
+    }
+    /// <summary>
+    /// 加入瞬态容器
+    /// </summary>
+    /// <param name="ents">对象</param>
+    public void Add(params Entity[] ents)=> AddEnts(_drawingMode, ents);
+    /// <summary>
+    /// 加入瞬态容器
+    /// </summary>
+    /// <param name="ents">对象</param>
+    public void Add(IEnumerable<Entity> ents) => AddEnts(_drawingMode, ents);
+    /// <summary>
+    /// 加入瞬态容器
+    /// </summary>
+    /// <param name="tdm">绘图模式</param>
+    /// <param name="ents">对象</param>
+    public void Add(TransientDrawingMode tdm, params Entity[] ents)=> AddEnts(tdm, ents);
+    /// 加入瞬态容器
+    /// </summary>
+    /// <param name="tdm">绘图模式</param>
+    /// <param name="ents">对象</param>
+    public void Add(TransientDrawingMode tdm, IEnumerable<Entity> ents) => AddEnts(tdm, ents);
+    /// <summary>
+    /// 更新瞬态图元
+    /// </summary>
+    /// <param name="ent">对象</param>
+    void UpdateEnt(Entity ent)=> TransientManager.CurrentTransientManager.UpdateTransient(ent, _integerCollection);
+    /// <summary>
+    /// 更新图元显示
+    /// </summary>
+    /// <param name="ents">对象</param>
+    public void Update(params Entity[] ents)
+    {
+        foreach (var ent in ents)
+        {
+            if (!_entities.Contains(ent)) continue;
+            UpdateEnt(ent);
+        }
+    }
+    /// <summary>
+    /// 更新图元显示
+    /// </summary>
+    /// <param name="ents">对象</param>
+    public void Update(IEnumerable<Entity> ents)
+    {
+        foreach (var ent in ents)
+        {
+            if (!_entities.Contains(ent)) continue;
+            UpdateEnt(ent);
+        }
+    }
+    /// <summary>
+    /// 更新所有图元显示
+    /// </summary>
+    public void Update()
+    {
+        foreach (var ent in _entities)
+        {
+            UpdateEnt(ent);
+        }
+    }
+    /// <summary>
+    /// 删除瞬态图元
+    /// </summary>
+    /// <param name="ent">图元</param>
+    void EraseEnt(Entity ent)=> TransientManager.CurrentTransientManager.EraseTransient(ent, _integerCollection);
+    /// <summary>
+    /// 从容器中移除对象并取消显示
+    /// </summary>
+    /// <param name="ents"></param>
+    public void Remove(params Entity[] ents)
+    {
+        foreach (var ent in ents)
+        {
+            if (!_entities.Contains(ent)) continue;
+            EraseEnt(ent);
+            _entities.Remove(ent);
+        }
+    }
+    /// <summary>
+    /// 从容器中移除对象并取消显示
+    /// </summary>
+    /// <param name="ents"></param>
+    public void Remove(IEnumerable<Entity> ents)
+    {
+        foreach (var ent in ents)
+        {
+            if (!_entities.Contains(ent)) continue;
+            EraseEnt(ent);
+            _entities.Remove(ent);
+        }
+    }
+    /// <summary>
+    /// 移除容器中某一类对象并取消显示
+    /// </summary>
+    /// <param name="tdm">类型</param>
+    public void Remove(TransientDrawingMode tdm)
+    {
+        TransientManager.CurrentTransientManager.EraseTransients(tdm, 128, _integerCollection);
+        _entities.Clear();
+    }
+    /// <summary>
+    /// 清空容器和图纸上的图元显示
+    /// </summary>
+    public void Clear()
+    {
+        foreach (var ent in _entities)
+        {
+            EraseEnt(ent);
+        }
+        _entities.Clear();
+    }
+    /// <summary>
+    /// 销毁容器
+    /// 为了让类可以using避免忘记Clear
+    /// </summary>
+    public void Dispose() => this.Clear();
+    public IEnumerator<Entity> GetEnumerator()
+    {
+        var a = ((IEnumerable<Entity>)_entities).GetEnumerator();
+        return a;
+    }
+    IEnumerator IEnumerable.GetEnumerator()
+    {
+        throw new NotImplementedException();
+    }
+}
+#endif
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