diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 5e70234..e4b5b42 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -4,7 +4,11 @@
     <option name="autoReloadType" value="SELECTIVE" />
   </component>
   <component name="ChangeListManager">
-    <list default="true" id="9e837299-3ff7-44a4-ad1c-8ef52c6303b1" name="变更" comment="修改完善实体类" />
+    <list default="true" id="9e837299-3ff7-44a4-ad1c-8ef52c6303b1" name="变更" comment="修改完善实体类">
+      <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/README.md" beforeDir="false" afterPath="$PROJECT_DIR$/README.md" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/org/example/App.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/org/example/App.java" afterDir="false" />
+    </list>
     <option name="SHOW_DIALOG" value="false" />
     <option name="HIGHLIGHT_CONFLICTS" value="true" />
     <option name="HIGHLIGHT_NON_ACTIVE_CHANGELIST" value="false" />
@@ -62,22 +66,42 @@
     <option name="hideEmptyMiddlePackages" value="true" />
     <option name="showLibraryContents" value="true" />
   </component>
-  <component name="PropertiesComponent"><![CDATA[{
-  "keyToString": {
-    "RunOnceActivity.OpenProjectViewOnStart": "true",
-    "RunOnceActivity.ShowReadmeOnStart": "true",
-    "SHARE_PROJECT_CONFIGURATION_FILES": "true",
-    "WebServerToolWindowFactoryState": "false",
-    "last_opened_file_path": "C:/_Codes/CodeFiles_IDEA/Project02/JavaEle",
-    "node.js.detected.package.eslint": "true",
-    "node.js.detected.package.tslint": "true",
-    "node.js.selected.package.eslint": "(autodetect)",
-    "node.js.selected.package.tslint": "(autodetect)",
-    "nodejs_package_manager_path": "npm",
-    "settings.editor.selected.configurable": "preferences.lookFeel",
-    "vue.rearranger.settings.migration": "true"
+  <component name="PropertiesComponent">{
+  &quot;keyToString&quot;: {
+    &quot;RunOnceActivity.OpenProjectViewOnStart&quot;: &quot;true&quot;,
+    &quot;RunOnceActivity.ShowReadmeOnStart&quot;: &quot;true&quot;,
+    &quot;SHARE_PROJECT_CONFIGURATION_FILES&quot;: &quot;true&quot;,
+    &quot;WebServerToolWindowFactoryState&quot;: &quot;false&quot;,
+    &quot;last_opened_file_path&quot;: &quot;C:/_Codes/CodeFiles_IDEA/Project02/JavaEle&quot;,
+    &quot;node.js.detected.package.eslint&quot;: &quot;true&quot;,
+    &quot;node.js.detected.package.tslint&quot;: &quot;true&quot;,
+    &quot;node.js.selected.package.eslint&quot;: &quot;(autodetect)&quot;,
+    &quot;node.js.selected.package.tslint&quot;: &quot;(autodetect)&quot;,
+    &quot;nodejs_package_manager_path&quot;: &quot;npm&quot;,
+    &quot;settings.editor.selected.configurable&quot;: &quot;preferences.lookFeel&quot;,
+    &quot;vue.rearranger.settings.migration&quot;: &quot;true&quot;
   }
-}]]></component>
+}</component>
+  <component name="RunManager">
+    <configuration name="App" type="Application" factoryName="Application" temporary="true" nameIsGenerated="true">
+      <option name="MAIN_CLASS_NAME" value="org.example.App" />
+      <module name="JavaEle" />
+      <extension name="coverage">
+        <pattern>
+          <option name="PATTERN" value="org.example.*" />
+          <option name="ENABLED" value="true" />
+        </pattern>
+      </extension>
+      <method v="2">
+        <option name="Make" enabled="true" />
+      </method>
+    </configuration>
+    <recent_temporary>
+      <list>
+        <item itemvalue="应用程序.App" />
+      </list>
+    </recent_temporary>
+  </component>
   <component name="SpellCheckerSettings" RuntimeDictionaries="0" Folders="0" CustomDictionaries="0" DefaultDictionary="应用程序级" UseSingleDictionary="true" transferred="true" />
   <component name="SvnConfiguration">
     <configuration>C:\Users\subtle moon\AppData\Roaming\Subversion</configuration>
diff --git a/README.md b/README.md
index f12bb70..00a285b 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,4 @@
 # Homework-Ele
 网安实训作业，”山寨”饿了么
+# 20230326
+- 增加实体类
\ No newline at end of file
diff --git a/src/main/java/org/example/App.java b/src/main/java/org/example/App.java
index 5f21d2e..129f23b 100644
--- a/src/main/java/org/example/App.java
+++ b/src/main/java/org/example/App.java
@@ -1,13 +1,7 @@
 package org.example;
 
-/**
- * Hello world!
- *
- */
-public class App 
-{
-    public static void main( String[] args )
-    {
-        System.out.println( "Hello World!" );
+public class App {
+    public static void main(String[] args) {
+        System.out.println("Hello World!");
     }
 }