增加项目，分层

Store.Framework/ThreadManage/WorkUnit.cs

@@ -0,0 +1,29 @@
+using System;
+/// <summary>
+/// Represents an instance of a task.
+/// </summary>
+namespace Store.Framework.ThreadManage
+{
+    /// <summary>
+    /// ¹¤×÷µ¥Ïî
+    /// </summary>
+    public class WorkUnit
+    {
+        internal bool IsWork { get; set; } = false;
+        internal DateTime EndTime { get; set; } = DateTime.Now;
+        internal WorkAction Action { get; set; }
+        internal bool Completed { get; set; }
+        internal object Argument { get; set; }
+
+        //public void Wait(int time)
+        //{
+        //    EndTime = DateTime.Now.AddMilliseconds(time);
+        //    IsWork = false;
+        //}
+
+        public T GetArg<T>()
+        {
+            return (T)Argument;
+        }
+    }
+}