diff --git a/.gitignore b/.gitignore
index ad3046a..42f9d16 100644
--- a/.gitignore
+++ b/.gitignore
@@ -18,6 +18,9 @@ $RECYCLE.BIN/
 # Windows shortcuts
 *.lnk
 
+# ---> Visual Studio Code
+.vscode/solution-explorer/
+
 # ---> VisualStudio
 ## Ignore Visual Studio temporary files, build results, and
 ## files generated by popular Visual Studio add-ons.
diff --git a/Study.DelegateSeries.Core/StudyDelegate.cs b/Study.DelegateSeries.Core/StudyDelegate.cs
index 2d3f0eb..4a1fef3 100644
--- a/Study.DelegateSeries.Core/StudyDelegate.cs
+++ b/Study.DelegateSeries.Core/StudyDelegate.cs
@@ -23,13 +23,7 @@ namespace Study.DelegateSeries.Core
          * 10、总结
          */
 
-        #region 定义委托
-        //基本语法
-        public delegate decimal OperationDelegate(decimal a,decimal b);
-
-        public delegate string ShowTypeNameDelegate();
-
-        public delegate string ShowNameDelegate();
+        #region 定义委托,DeclareDelegate类
         #endregion
 
         #region 实例化委托
@@ -38,9 +32,9 @@ namespace Study.DelegateSeries.Core
         /// 基础语法
         /// (c#1.0 开始提供)
         /// </summary>
-        public OperationDelegate BaseInstance()
+        public CalculatorDelegate BaseInstance()
         {
-            OperationDelegate operation = new OperationDelegate(new Addition().Add);
+            CalculatorDelegate operation = new CalculatorDelegate(new Addition().Add);
             return operation;
         }
 
@@ -48,9 +42,9 @@ namespace Study.DelegateSeries.Core
         /// c#2.0 简写方法
         /// (基于类型推断)
         /// </summary>
-        public OperationDelegate AutoTypeInstance()
+        public CalculatorDelegate AutoTypeInstance()
         {
-            OperationDelegate operation = new Subtraction().Difference;
+            CalculatorDelegate operation = new Subtraction().Difference;
             return operation;
         }
 
@@ -58,10 +52,10 @@ namespace Study.DelegateSeries.Core
         /// c#2.0 匿名委托
         /// (使用匿名方法实例化的委托)
         /// </summary>
-        public OperationDelegate AnonymousInstance()
+        public CalculatorDelegate AnonymousInstance()
         {
             //c# 2.0基础语法
-            OperationDelegate operation = delegate (decimal a,decimal b) { return (a * b) * (a * b); };
+            CalculatorDelegate operation = delegate (decimal a,decimal b) { return (a * b) * (a * b); };
             return operation;
         }
 
@@ -69,14 +63,14 @@ namespace Study.DelegateSeries.Core
         /// c#3.0 Lambda表达式
         /// (实质："Lambda表达式"是一个匿名函数)
         /// </summary>
-        public OperationDelegate LambdaInstance()
+        public CalculatorDelegate LambdaInstance()
         {
-            OperationDelegate operation = (decimal a,decimal b)=> { return a * a + b * b + 2 * a * b; };
+            CalculatorDelegate operation = (decimal a,decimal b)=> { return a * a + b * b + 2 * a * b; };
             //自动推断
-            OperationDelegate operation2 = (a,b) => { return a * a + b * b + 2 * a * b; };
+            CalculatorDelegate operation2 = (a,b) => { return a * a + b * b + 2 * a * b; };
 
             //{}只有一句时的简写
-            OperationDelegate operation3 = (a, b) => a * a + b * b + 2 * a * b ;
+            CalculatorDelegate operation3 = (a, b) => a * a + b * b + 2 * a * b ;
 
             return operation;
         }
diff --git a/Study.DelegateSeries.Test/StudyDelegateTest.cs b/Study.DelegateSeries.Test/StudyDelegateTest.cs
new file mode 100644
index 0000000..600aea9
--- /dev/null
+++ b/Study.DelegateSeries.Test/StudyDelegateTest.cs
@@ -0,0 +1,77 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+using Xunit;
+
+using Study.DelegateSeries.Core;
+using Study.DelegateSeries.Core.Calculator;
+
+namespace Study.DelegateSeries.Test
+{
+    public class StudyDelegateTest : IDisposable, IClassFixture<StudyDelegate>
+    {
+        #region 准备
+        private StudyDelegate studyDelegate;
+
+        public StudyDelegateTest(StudyDelegate _studyDelegate)
+        {
+            this.studyDelegate = _studyDelegate;
+        }
+        #endregion
+
+        #region xUnit框架可能性测试
+        [Fact]
+        public void FixtureTest()
+        {
+            Assert.NotNull(studyDelegate);
+        }
+        #endregion
+
+        #region 实例化委托测试
+        [Fact]
+        public void BaseInstanceTest()
+        {
+            var baseInstance = this.studyDelegate.BaseInstance();
+
+            Assert.NotNull(baseInstance);
+            Assert.True(baseInstance.Method.IsPublic);
+        }
+
+        [Fact]
+        public void AutoTypeInstanceTest()
+        {
+            var baseInstance = this.studyDelegate.AutoTypeInstance();
+
+            Assert.NotNull(baseInstance);
+            Assert.Equal("Difference", baseInstance.Method.Name);
+        }
+
+        [Fact]
+        public void AnonymousInstanceTest()
+        {
+            var baseInstance = this.studyDelegate.AnonymousInstance();
+
+            Assert.NotNull(baseInstance);
+            Assert.False(baseInstance.Method.IsSpecialName);
+        }
+
+        [Fact]
+        public void LambdaInstanceTest()
+        {
+            var baseInstance = this.studyDelegate.LambdaInstance();
+
+            Assert.NotNull(baseInstance);
+            Assert.False(baseInstance.Method.IsSpecialName);
+        }
+        #endregion
+
+        #region 清理
+        void IDisposable.Dispose()
+        {
+
+        }
+        #endregion
+
+    }
+}
diff --git a/Study.DelegateSeries.Test/XUnitTest.cs b/Study.DelegateSeries.Test/XUnitTest.cs
index 10c2699..0e6623d 100644
--- a/Study.DelegateSeries.Test/XUnitTest.cs
+++ b/Study.DelegateSeries.Test/XUnitTest.cs
@@ -9,12 +9,6 @@ namespace Study.DelegateSeries.Test
         [Fact]
         public void UseXunit()
         {
-            List<string> array = new List<string>();
-            for (int i = 0; i < 10; i++)
-            {
-                array.Add(i.ToString());
-            }
-
             Assert.True(true, "���ͨ��");
         }
     }