diff --git a/DesignPattern/DesignPattern.sln b/DesignPattern/DesignPattern.sln
index 8b7bb9d..22f1228 100644
--- a/DesignPattern/DesignPattern.sln
+++ b/DesignPattern/DesignPattern.sln
@@ -23,6 +23,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Decorator", "Decorator\Deco
EndProject
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Facade", "Facade\Facade.csproj", "{968D6295-75C3-46FF-AAB9-1579DB405B31}"
EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Proxy", "Proxy\Proxy.csproj", "{F6C67C41-900D-4606-A6D6-BA059D6485A0}"
+EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|Any CPU = Debug|Any CPU
@@ -69,6 +71,10 @@ Global
{968D6295-75C3-46FF-AAB9-1579DB405B31}.Debug|Any CPU.Build.0 = Debug|Any CPU
{968D6295-75C3-46FF-AAB9-1579DB405B31}.Release|Any CPU.ActiveCfg = Release|Any CPU
{968D6295-75C3-46FF-AAB9-1579DB405B31}.Release|Any CPU.Build.0 = Release|Any CPU
+ {F6C67C41-900D-4606-A6D6-BA059D6485A0}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+ {F6C67C41-900D-4606-A6D6-BA059D6485A0}.Debug|Any CPU.Build.0 = Debug|Any CPU
+ {F6C67C41-900D-4606-A6D6-BA059D6485A0}.Release|Any CPU.ActiveCfg = Release|Any CPU
+ {F6C67C41-900D-4606-A6D6-BA059D6485A0}.Release|Any CPU.Build.0 = Release|Any CPU
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
diff --git a/DesignPattern/Proxy/App.config b/DesignPattern/Proxy/App.config
new file mode 100644
index 0000000..193aecc
--- /dev/null
+++ b/DesignPattern/Proxy/App.config
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/DesignPattern/Proxy/Client.cs b/DesignPattern/Proxy/Client.cs
new file mode 100644
index 0000000..c0690a1
--- /dev/null
+++ b/DesignPattern/Proxy/Client.cs
@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Proxy
+{
+ class Client
+ {
+ public static void HowToTest(string url)
+ {
+ IWeb web = new ProxyWeb();
+ string result = web.Visit(url);
+
+ Console.WriteLine(result);
+ }
+ }
+}
diff --git a/DesignPattern/Proxy/IWeb.cs b/DesignPattern/Proxy/IWeb.cs
new file mode 100644
index 0000000..cfc2140
--- /dev/null
+++ b/DesignPattern/Proxy/IWeb.cs
@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Proxy
+{
+ interface IWeb
+ {
+ string Visit(string url);
+ }
+}
diff --git a/DesignPattern/Proxy/Program.cs b/DesignPattern/Proxy/Program.cs
new file mode 100644
index 0000000..55cba23
--- /dev/null
+++ b/DesignPattern/Proxy/Program.cs
@@ -0,0 +1,23 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Proxy
+{
+ /*
+ * 카테고리: 구조 패턴
+ * 개요: 클라이언트가 사용을 원하는 객체를 직접 사용하는것이 아니라
+ * 객체에 대한 대리자(Proxy) 역할을 하는 객체를 두고 이를 통해 사용하는 방식
+ */
+ class Program
+ {
+ static void Main(string[] args)
+ {
+ Client.HowToTest("https://phishingsite.com");
+
+ Console.ReadKey();
+ }
+ }
+}
diff --git a/DesignPattern/Proxy/Properties/AssemblyInfo.cs b/DesignPattern/Proxy/Properties/AssemblyInfo.cs
new file mode 100644
index 0000000..31a3ff4
--- /dev/null
+++ b/DesignPattern/Proxy/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("Proxy")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("Proxy")]
+[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("f6c67c41-900d-4606-a6d6-ba059d6485a0")]
+
+// 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/Proxy/Proxy.csproj b/DesignPattern/Proxy/Proxy.csproj
new file mode 100644
index 0000000..5627d89
--- /dev/null
+++ b/DesignPattern/Proxy/Proxy.csproj
@@ -0,0 +1,57 @@
+
+
+
+
+ Debug
+ AnyCPU
+ {F6C67C41-900D-4606-A6D6-BA059D6485A0}
+ Exe
+ Proxy
+ Proxy
+ 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/Proxy/ProxyWeb.cs b/DesignPattern/Proxy/ProxyWeb.cs
new file mode 100644
index 0000000..953b5f1
--- /dev/null
+++ b/DesignPattern/Proxy/ProxyWeb.cs
@@ -0,0 +1,28 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Proxy
+{
+ class ProxyWeb : IWeb
+ {
+ private IWeb realWeb = new RealWeb();
+
+ List BAD_SITES = new List()
+ {
+ "https://hackersite.com",
+ "https://fraudsite.com",
+ "https://phishingsite.com"
+ };
+
+ public string Visit(string url)
+ {
+ if (BAD_SITES.Contains(url.ToLower()))
+ return "BAD_SITES";
+
+ return realWeb.Visit(url);
+ }
+ }
+}
diff --git a/DesignPattern/Proxy/RealWeb.cs b/DesignPattern/Proxy/RealWeb.cs
new file mode 100644
index 0000000..21a9d73
--- /dev/null
+++ b/DesignPattern/Proxy/RealWeb.cs
@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Proxy
+{
+ class RealWeb : IWeb
+ {
+ public string Visit(string url)
+ {
+ WebClient wc = new WebClient();
+
+ return wc.DownloadString(url);
+ }
+ }
+}