diff --git a/README.md b/README.md
index a8dcb92..333c011 100644
--- a/README.md
+++ b/README.md
@@ -30,7 +30,6 @@ CLI : dotnet add package IGeekFan.AspNetCore.Knife4jUI
 2.In the ConfigureServices method of Startup.cs, register the Swagger generator, defining one or more Swagger documents.
 
 ```
-using System.Reflection;
 using Microsoft.AspNetCore.Mvc.Controllers
 using Microsoft.OpenApi.Models;
 using Swashbuckle.AspNetCore.SwaggerGen;
diff --git a/samples/SwaggerUI_IndexStream_Knife4jUI_Demo/Startup.cs b/samples/SwaggerUI_IndexStream_Knife4jUI_Demo/Startup.cs
index 71aaa2b..29a20b0 100644
--- a/samples/SwaggerUI_IndexStream_Knife4jUI_Demo/Startup.cs
+++ b/samples/SwaggerUI_IndexStream_Knife4jUI_Demo/Startup.cs
@@ -1,6 +1,5 @@
 using System.Collections.Generic;
 using System.IO;
-using System.Reflection;
 using System.Text.Json;
 using System.Text.Json.Serialization;
 using Microsoft.AspNetCore.Builder;
@@ -12,7 +11,6 @@ using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.FileProviders;
 using Microsoft.Extensions.Hosting;
 using Microsoft.OpenApi.Models;
-using Swashbuckle.AspNetCore.SwaggerGen;
 using Swashbuckle.AspNetCore.SwaggerUI;
 
 namespace Knife4jUIDemo
diff --git a/test/Basic/Startup.cs b/test/Basic/Startup.cs
index 0bf3a27..c3ffe5a 100644
--- a/test/Basic/Startup.cs
+++ b/test/Basic/Startup.cs
@@ -1,5 +1,4 @@
 using System;
-using System.Collections.Generic;
 using System.Globalization;
 using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting;
@@ -10,12 +9,6 @@ using Microsoft.OpenApi.Models;
 using Basic.Swagger;
 using Microsoft.AspNetCore.Localization;
 using System.IO;
-using Microsoft.AspNetCore.Http;
-using Microsoft.Extensions.Options;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-using Swashbuckle.AspNetCore.SwaggerGen;
-using System.Reflection;
 using IGeekFan.AspNetCore.Knife4jUI;
 using Microsoft.AspNetCore.Mvc.Controllers;
 
diff --git a/test/Knife4jUIDemo/Startup.cs b/test/Knife4jUIDemo/Startup.cs
index c28c38e..56b1d39 100644
--- a/test/Knife4jUIDemo/Startup.cs
+++ b/test/Knife4jUIDemo/Startup.cs
@@ -1,20 +1,11 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Reflection;
-using System.Threading.Tasks;
 using IGeekFan.AspNetCore.Knife4jUI;
 using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting;
-using Microsoft.AspNetCore.HttpsPolicy;
-using Microsoft.AspNetCore.Mvc;
 using Microsoft.AspNetCore.Mvc.Controllers;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;
-using Microsoft.Extensions.Logging;
 using Microsoft.OpenApi.Models;
-using Swashbuckle.AspNetCore.SwaggerGen;
 
 namespace Knife4jUIDemo
 {