add tools

src/main/java/main/main.java

@@ -2,6 +2,8 @@ package main;
 
 import main.YamlLoad.yaml;
 
+import static main.util.tools.echo;
+
 public class main {
     public boolean debug = true;
 
@@ -18,7 +20,9 @@ public class main {
             // 获取当前的运行目录
             System.out.println("当前运行目录: " + System.getProperty("user.dir"));
         }
-        System.out.println("\nHello World!");
+
+        echo("\nHello World!\n");
+
         new main().YamlTest();
     }
 

src/main/java/main/util/tools.java

@@ -1,4 +1,7 @@
 package main.util;
 
 public class tools {
+    public static void echo(String msg) {
+        System.out.println(msg);
+    }
 }