一次测试

.idea/misc.xml

@@ -5,10 +5,11 @@
     <option name="originalFiles">
       <list>
         <option value="$PROJECT_DIR$/pom.xml" />
+        <option value="$PROJECT_DIR$/pom.xml" />
       </list>
     </option>
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="17" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_21" default="true" project-jdk-name="21" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
 </project>

src/main/java/com/example/Main.java

@@ -2,6 +2,8 @@ package com.example;
 
 public class Main {
     public static void main(String[] args) {
-        System.out.println("Hello world!");
+
+
+        System.out.println("第一个小您过目");
     }
 }