java == 的问题（悄悄的来吐槽一下隔壁java，哈哈哈）

public class TestUnit implements ITest {



    @Test

    public void Test1()

    {

        Double a=1.0d;

        Double b=2.0d;

        Double c=1.0d;

        double d=1.0d;



        System.out.println("a>b "+(a>b));       //a>b false

        System.out.println("a==b "+(a==b));     //a==b false

        System.out.println("a<b "+(a<b));       //a<b true



        System.out.println("a==c "+(a==c));     //a==c false

        System.out.println("a>=c "+(a>=c));     //a>=c true



        System.out.println("a==d "+(a==d));     //a==d true



        System.out.println("a.compareTo(c) " +a.compareTo(c));

    }

}