diff --git a/Docs/说明.md b/Docs/说明.md
index 52cd710..6fc19e5 100644
--- a/Docs/说明.md
+++ b/Docs/说明.md
@@ -1,10 +1,6 @@
 HttpClient 学习项目
 ==================
 注意：
-+ 启动单元测试前，先启动“HttpClientStudy.WebApp”WebApi项目
++ 单元测试运行时，会自动启动“HttpClientStudy.WebApp”WebApi项目，无需手动干预。
 
-	```cmd
-	# 命令行启动WebAPI项目
-	dotnet run
-	```
 ## 其它
diff --git a/HttpClientStudy.Core/HttpClients/SimpleHttpClient.cs b/HttpClientStudy.Core/HttpClients/SimpleHttpClient.cs
index 0f7e92c..5818b6b 100644
--- a/HttpClientStudy.Core/HttpClients/SimpleHttpClient.cs
+++ b/HttpClientStudy.Core/HttpClients/SimpleHttpClient.cs
@@ -1,8 +1,4 @@
-using System.Net;
-using System.Net.Http.Json;
-using System.Net.Mime;
-
-namespace HttpClientStudy.UnitTest.HttpClients
+namespace HttpClientStudy.UnitTest.HttpClients
 {
     /// <summary>
     /// 简单 HttpClient 包装类
@@ -12,7 +8,7 @@ namespace HttpClientStudy.UnitTest.HttpClients
         #region Get请求
         public string Get(string url)
         {
-            HttpClient client = new HttpClient();
+            var client = new HttpClient();
             //可以统一设置HttpClient属性：HttpClient可以使用统一设置进行多次请求。
             //client.BaseAddress = new Uri(url);
             //client.DefaultRequestHeaders.Add("Accept", "application/json");
@@ -24,7 +20,7 @@ namespace HttpClientStudy.UnitTest.HttpClients
             //只有Send是同步方法，其它全为异步方法。
 
             //Send同步方法，需要HttpRequestMessage参数
-            HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Get, url);
+            var request = new HttpRequestMessage(HttpMethod.Get, url);
             var response = client.Send(request);
 
             response.EnsureSuccessStatusCode();
@@ -53,7 +49,7 @@ namespace HttpClientStudy.UnitTest.HttpClients
 
         public async Task<string> GetAsync(string url)
         {
-            HttpClient client = new HttpClient();
+            var client = new HttpClient();
             var response = await client.GetAsync(url);
 
             response.EnsureSuccessStatusCode();
@@ -65,9 +61,9 @@ namespace HttpClientStudy.UnitTest.HttpClients
 
         public TResult? GetJson<TResult>(string url)
         {
-            HttpClient client = new HttpClient();
+            var client = new HttpClient();
 
-            HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Get, url);
+            var request = new HttpRequestMessage(HttpMethod.Get, url);
             var response = client.Send(request);
 
             response.EnsureSuccessStatusCode();
@@ -83,7 +79,7 @@ namespace HttpClientStudy.UnitTest.HttpClients
 
         public async Task<TResult?> GetJsonAsync<TResult>(string url)
         {
-            HttpClient client = new HttpClient();
+            var client = new HttpClient();
 
             var response = await client.GetAsync(url);