c4:修改main3

src/main/java/org/example/Main.java

@@ -8,7 +8,7 @@ package org.example;
  */
 public class Main {
     public static void main(String[] args) {
-        System.out.println("Hello world!");
+        System.out.println("Hello world333333333!");
         System.out.println("hhhhhh");
         System.out.println("hhhhhh3");
     }