#define JABOOK
using System;
using System.Diagnostics;
class ConditionalTest{
[Conditional("JABOOK")]
public static void DefineMethod(){
Console.WriteLine("Define Conditional 애트리뷰트!!");
}
[Conditional("MICROSOFT")]
public static void UndefineMethod(){
Console.WriteLine("Undefine Conditional 애트리뷰트!!");
}
public static void Main(){
ConditionalTest.DefineMethod();
ConditionalTest.UndefineMethod();
}//Main
}//class

