diff --git a/DesignPattern/Composite/App.config b/DesignPattern/Composite/App.config
new file mode 100644
index 0000000..193aecc
--- /dev/null
+++ b/DesignPattern/Composite/App.config
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/DesignPattern/Composite/Client.cs b/DesignPattern/Composite/Client.cs
new file mode 100644
index 0000000..a4cacb0
--- /dev/null
+++ b/DesignPattern/Composite/Client.cs
@@ -0,0 +1,35 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Composite
+{
+ class Client
+ {
+ public static void HowToTest()
+ {
+ Directory dir = new Directory("Folder");
+ File file1 = new File("a1.doc");
+ File file2 = new File("a2.doc");
+ File file3 = new File("a3.doc");
+ Directory sub = new Directory("SubFolder");
+
+ dir.AddChildren(file1);
+ dir.AddChildren(file2);
+ dir.AddChildren(file3);
+ dir.AddChildren(sub);
+
+ DisplayNode(file2, dir);
+ }
+
+ static void DisplayNode(params Node[] component)
+ {
+ foreach (Node item in component)
+ {
+ item.Display();
+ }
+ }
+ }
+}
diff --git a/DesignPattern/Composite/Composite.csproj b/DesignPattern/Composite/Composite.csproj
new file mode 100644
index 0000000..2082ed1
--- /dev/null
+++ b/DesignPattern/Composite/Composite.csproj
@@ -0,0 +1,57 @@
+
+
+
+
+ Debug
+ AnyCPU
+ {52E6E6B5-8A12-4A92-8A38-8697247F4CA2}
+ Exe
+ Composite
+ Composite
+ v4.8
+ 512
+ true
+ true
+
+
+ AnyCPU
+ true
+ full
+ false
+ bin\Debug\
+ DEBUG;TRACE
+ prompt
+ 4
+
+
+ AnyCPU
+ pdbonly
+ true
+ bin\Release\
+ TRACE
+ prompt
+ 4
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/DesignPattern/Composite/Directory.cs b/DesignPattern/Composite/Directory.cs
new file mode 100644
index 0000000..ab49e31
--- /dev/null
+++ b/DesignPattern/Composite/Directory.cs
@@ -0,0 +1,33 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Composite
+{
+ class Directory : Node
+ {
+ private List children = new List();
+
+ public Directory(string name)
+ {
+ Name = name;
+ }
+
+ public override void Display()
+ {
+ Console.WriteLine($"DIR: {Name}");
+ foreach (Node comp in children)
+ {
+ comp.Display();
+ }
+ }
+
+ public void AddChildren(Node child)
+ {
+ if (child != null)
+ children.Add(child);
+ }
+ }
+}
diff --git a/DesignPattern/Composite/File.cs b/DesignPattern/Composite/File.cs
new file mode 100644
index 0000000..d7389de
--- /dev/null
+++ b/DesignPattern/Composite/File.cs
@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Composite
+{
+ class File : Node
+ {
+ public File(string name)
+ {
+ Name = name;
+ }
+
+ public override void Display()
+ {
+ Console.WriteLine($"FILE: {Name}");
+ }
+ }
+}
diff --git a/DesignPattern/Composite/Node.cs b/DesignPattern/Composite/Node.cs
new file mode 100644
index 0000000..6a4c4c4
--- /dev/null
+++ b/DesignPattern/Composite/Node.cs
@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Composite
+{
+ abstract class Node
+ {
+ public string Name { get; protected set; }
+ public abstract void Display();
+ }
+}
diff --git a/DesignPattern/Composite/Program.cs b/DesignPattern/Composite/Program.cs
new file mode 100644
index 0000000..f19d7cd
--- /dev/null
+++ b/DesignPattern/Composite/Program.cs
@@ -0,0 +1,24 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Composite
+{
+ /*
+ * 카테고리: 구조 패턴
+ * 개요: 객체나 객체들의 그룹을 클라이언트 입장에서 동일하게 취급하고 사용할 수 있게 함.
+ * 개별 객체(Leaf)나 객체 그룹(Composite)을 트리 구조로 만들어 계층을 표현함.
+ * 개별 객체나 객체 그룹은 Component 인터페이스를 통해 leaf든 composite이든 구분 없이 클라이언트에 사용됨.
+ */
+ class Program
+ {
+ static void Main(string[] args)
+ {
+ Client.HowToTest();
+
+ Console.ReadKey();
+ }
+ }
+}
diff --git a/DesignPattern/Composite/Properties/AssemblyInfo.cs b/DesignPattern/Composite/Properties/AssemblyInfo.cs
new file mode 100644
index 0000000..c5d0b05
--- /dev/null
+++ b/DesignPattern/Composite/Properties/AssemblyInfo.cs
@@ -0,0 +1,36 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// 어셈블리에 대한 일반 정보는 다음 특성 집합을 통해
+// 제어됩니다. 어셈블리와 관련된 정보를 수정하려면
+// 이러한 특성 값을 변경하세요.
+[assembly: AssemblyTitle("Composite")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("Composite")]
+[assembly: AssemblyCopyright("Copyright © 2022")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// ComVisible을 false로 설정하면 이 어셈블리의 형식이 COM 구성 요소에
+// 표시되지 않습니다. COM에서 이 어셈블리의 형식에 액세스하려면
+// 해당 형식에 대해 ComVisible 특성을 true로 설정하세요.
+[assembly: ComVisible(false)]
+
+// 이 프로젝트가 COM에 노출되는 경우 다음 GUID는 typelib의 ID를 나타냅니다.
+[assembly: Guid("52e6e6b5-8a12-4a92-8a38-8697247f4ca2")]
+
+// 어셈블리의 버전 정보는 다음 네 가지 값으로 구성됩니다.
+//
+// 주 버전
+// 부 버전
+// 빌드 번호
+// 수정 버전
+//
+// 모든 값을 지정하거나 아래와 같이 '*'를 사용하여 빌드 번호 및 수정 번호를
+// 기본값으로 할 수 있습니다.
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]
diff --git a/DesignPattern/DesignPattern.sln b/DesignPattern/DesignPattern.sln
index c66bcb0..11fbf5f 100644
--- a/DesignPattern/DesignPattern.sln
+++ b/DesignPattern/DesignPattern.sln
@@ -17,6 +17,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Adapter", "Adapter\Adapter.
EndProject
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bridge", "Bridge\Bridge.csproj", "{ABFD30C8-C2C5-4142-9E64-2CC65FEBBF7A}"
EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Composite", "Composite\Composite.csproj", "{52E6E6B5-8A12-4A92-8A38-8697247F4CA2}"
+EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|Any CPU = Debug|Any CPU
@@ -51,6 +53,10 @@ Global
{ABFD30C8-C2C5-4142-9E64-2CC65FEBBF7A}.Debug|Any CPU.Build.0 = Debug|Any CPU
{ABFD30C8-C2C5-4142-9E64-2CC65FEBBF7A}.Release|Any CPU.ActiveCfg = Release|Any CPU
{ABFD30C8-C2C5-4142-9E64-2CC65FEBBF7A}.Release|Any CPU.Build.0 = Release|Any CPU
+ {52E6E6B5-8A12-4A92-8A38-8697247F4CA2}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+ {52E6E6B5-8A12-4A92-8A38-8697247F4CA2}.Debug|Any CPU.Build.0 = Debug|Any CPU
+ {52E6E6B5-8A12-4A92-8A38-8697247F4CA2}.Release|Any CPU.ActiveCfg = Release|Any CPU
+ {52E6E6B5-8A12-4A92-8A38-8697247F4CA2}.Release|Any CPU.Build.0 = Release|Any CPU
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE