如何编写C#类来测试0和null

public class TestZeroAndNull
{
    public bool TestZero(int value)
    {
        return value == 0;
    }

    public bool TestNull(object value)
    {
        return value == null;
    }
}

public static void Main(string[] args)
{
    TestZeroAndNull tester = new TestZeroAndNull();

    int zero = 0;
    int nonZero = 10;
    object nullObject = null;
    object nonNullObject = new object();

    Console.WriteLine("Testing zero:");
    Console.WriteLine("0 is zero? " + tester.TestZero(zero));
    Console.WriteLine("10 is zero? " + tester.TestZero(nonZero));

    Console.WriteLine("Testing null:");
    Console.WriteLine("null is null? " + tester.TestNull(nullObject));
    Console.WriteLine("object is null? " + tester.TestNull(nonNullObject));
}