diff --git a/HttpClientStudy.UnitTest/startup.cs b/HttpClientStudy.UnitTest/startup.cs
index c05f402..7497001 100644
--- a/HttpClientStudy.UnitTest/startup.cs
+++ b/HttpClientStudy.UnitTest/startup.cs
@@ -1,15 +1,4 @@
-//using System;
-//using System.Collections.Generic;
-//using System.Linq;
-//using System.Text;
-//using System.Threading.Tasks;
-
-//using Microsoft.AspNetCore.Builder;
-//using Microsoft.AspNetCore.Hosting;
-//using Microsoft.AspNetCore.TestHost;
-//using Microsoft.Extensions.Configuration;
-//using Microsoft.Extensions.DependencyInjection;
-//using Microsoft.Extensions.Hosting;
+using System.Diagnostics;
 
 using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting;
@@ -19,6 +8,7 @@ using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;
 
 using Xunit;
+using Xunit.DependencyInjection;
 using Xunit.DependencyInjection.AspNetCoreTesting;
 using Xunit.DependencyInjection.Logging;
 
@@ -44,17 +34,17 @@ namespace HttpClientStudy.UnitTest
         /// <param name="hostBuilder"></param>
         public void ConfigureHost(IHostBuilder hostBuilder)
         {
-
             hostBuilder
-                .ConfigureWebHost
-                (webHostBuilder => webHostBuilder
-                    .UseTestServerAndAddDefaultHttpClient()
-                    .UseStartup<WebApiStartup>()
-                );
+                //主机配置
+                .ConfigureHostConfiguration(builder => 
+                {
 
-            //hostBuilder
-            //    .ConfigureHostConfiguration(builder => { })
-            //    .ConfigureAppConfiguration((context, builder) => { });
+                })
+                //应用配置
+                .ConfigureAppConfiguration((context, builder) => 
+                { 
+                
+                });
 
             hostBuilder.ConfigureWebHost(webHostBuilder =>
             {
@@ -83,7 +73,7 @@ namespace HttpClientStudy.UnitTest
         /// <param name="services"></param>
         public void ConfigureServices(IServiceCollection services,HostBuilderContext context)
         {
-            //services.AddTransient<IDependency, DependencyClass>();
+            Debugger.Log(1,"DI","ConfigureServices");
         }
 
         private class WebApiStartup