var reactor:Reactor = new Reactor();
   var log:Logger = reactor.getLog();
   // ログにデバッグメッセージを追加します:
   log.debug("Testing...1...2...3...");
   

   var log:Logger = reactor.getLog();
   log.addEventListener(LogEvent.UPDATE, updateListener);
   

   package {
     import flash.display.Sprite; 
     import flash.text.TextField;
   
     import net.user1.logger.LogEvent;
     import net.user1.logger.Logger;
     import net.user1.reactor.Reactor;
   
     public class UTest extends Sprite {
       protected var reactor:Reactor;
       protected var log出力:TextField;
   
       public function UTest () {
         // ログを出力するテキストフィールドを生成
         logOutput = new TextField();
         logOutput.border = true;
         logOutput.background = true;
         logOutput.width = 500;
         logOutput.height = 300;
         addChild(logOutput);
         
         // ログの更新について登録
         reactor = new Reactor();
         reactor.getLog().setLevel(Logger.DEBUG);
         reactor.getLog().addEventListener(LogEvent.UPDATE, logUpdateListener);
         reactor.getLog().debug("Hello world!");
       }
   
       public function logUpdateListener (e:LogEvent):void {
         logOutput.appendText(e.getTimeStamp() + " "
                              + e.getLevel() + ": " 
                              + e.getMessage() + "\n");
         logOutput.scrollV = logOutput.maxScrollV;
       }
     }
   }