diff --git a/src/IoC/IoC/Container.cs b/src/IoC/IoC/Container.cs
index 118add0..8816069 100644
--- a/src/IoC/IoC/Container.cs
+++ b/src/IoC/IoC/Container.cs
@@ -1,6 +1,7 @@
 using Autofac;
 using IoC.implement;
 using IoC.inerface;
+using IoC.services;
 
 namespace IoC
 {
@@ -15,7 +16,7 @@ namespace IoC
             ContainerBuilder builder = new ContainerBuilder();
 
             //在仲介公司裡寫需求人申請單
-            builder.RegisterType<MineWithMiddle>();
+            builder.RegisterType<MineIOC>();
             //小明所需打掃阿姨需求
             builder.RegisterType<Aunt>().As<ISwapable>();
 
diff --git a/src/IoC/IoC/IoC.csproj b/src/IoC/IoC/IoC.csproj
index 2c6e46f..48cbba7 100644
--- a/src/IoC/IoC/IoC.csproj
+++ b/src/IoC/IoC/IoC.csproj
@@ -56,6 +56,8 @@
     <Compile Include="inerface\ISwapable.cs" />
     <Compile Include="Program.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="services\Mine.cs" />
+    <Compile Include="services\MineIOC.cs" />
   </ItemGroup>
   <ItemGroup>
     <None Include="app.config" />
diff --git a/src/IoC/IoC/Program.cs b/src/IoC/IoC/Program.cs
index 3d1fc0a..3891504 100644
--- a/src/IoC/IoC/Program.cs
+++ b/src/IoC/IoC/Program.cs
@@ -1,51 +1,9 @@
 using Autofac;
-using IoC.implement;
-using IoC.inerface;
+using IoC.services;
 using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
 
 namespace IoC
 {
-    /// <summary>
-    /// (沒有注入的)
-    /// 小明直接依賴 Aunt 不是依賴抽象
-    /// 日後要改必須動內部
-    /// </summary>
-    public class Mine
-    {
-        public Aunt aunt = new Aunt();
-
-        public void Room()
-        {
-            aunt.Swapping();
-        }
-    }
-
-    /// <summary>
-    /// 小明 ( 有注入的 )
-    /// </summary>
-    public class MineWithMiddle
-    {
-        private ISwapable aunt;
-
-        /// <summary>
-        /// 依賴抽象[打掃動作的人]
-        /// </summary>
-        /// <param name="swapAble"></param>
-        public MineWithMiddle(ISwapable swapAble)
-        {
-            aunt = swapAble;
-        }
-
-        public void Room()
-        {
-            aunt.Swapping();
-        }
-    }
-
-
     class Program
     {
         static void Main(string[] args)
@@ -57,11 +15,11 @@ namespace IoC
             //========================
 
 
-
             // 有注入的
             IContainer middleCompany = Container.MiddleCompany();
+
             //仲介公司(IOC AutoFac)自動幫小明注入一個打掃阿姨
-            MineWithMiddle mineWithMiddle = middleCompany.Resolve<MineWithMiddle>();
+            MineIOC mineWithMiddle = middleCompany.Resolve<MineIOC>();
 
             mineWithMiddle.Room();
 
diff --git a/src/IoC/IoC/services/Mine.cs b/src/IoC/IoC/services/Mine.cs
new file mode 100644
index 0000000..bb4a9d0
--- /dev/null
+++ b/src/IoC/IoC/services/Mine.cs
@@ -0,0 +1,17 @@
+using IoC.implement;
+
+namespace IoC.services
+{
+    /// <summary>
+    /// 沒有注入
+    /// </summary>
+    public class Mine
+    {
+        public Aunt aunt = new Aunt();
+
+        public void Room()
+        {
+            aunt.Swapping();
+        }
+    }
+}
diff --git a/src/IoC/IoC/services/MineIOC.cs b/src/IoC/IoC/services/MineIOC.cs
new file mode 100644
index 0000000..1f36ef0
--- /dev/null
+++ b/src/IoC/IoC/services/MineIOC.cs
@@ -0,0 +1,26 @@
+using IoC.inerface;
+
+namespace IoC.services
+{
+    /// <summary>
+    /// 有注入
+    /// </summary>
+    public class MineIOC
+    {
+        private readonly ISwapable aunt;
+
+        /// <summary>
+        /// 依賴抽象[打掃動作的人]
+        /// </summary>
+        /// <param name="swapable"></param>
+        public MineIOC(ISwapable swapable)
+        {
+            aunt = swapable;
+        }
+
+        public void Room()
+        {
+            aunt.Swapping();
+        }
+    }
+}