java中如何借用enum在swith中使用字符串

enum MyEnum
{	s1,s2
}
public class MyEnumTest
{
	public static void main(String[] args)
	{
		
		switch(Enum.valueOf(MyEnum.class, args[0]))
		{
			case s1:
				System.out.println("fuck s1");
				break;
			case s2:
				System.out.println("fuck s2");
				break;
			default:
				System.out.println("fuck the world");
		}
	}
}

输入java MyEnumTest s1
fuck s1