关于Lambda表达式（箭头函数）的get属性访问器和常规的get属性访问器的差异

如下代码示例所示 d1 d2 相等，d3 d4 不等，因为赋值形式的访问器只是new一个实例后赋值，而lambda形式（箭头函数），则是把箭头右侧是当方法体来执行，即每次都 new一个新的实例

class Dog
    {
        public Dog()
        {
            this.Name = Guid.NewGuid().ToString("N");
        }

        public string Name { get; set; }
        public DateTime CreateTime { get; set; } = DateTime.Now;
    }

    class DogHouse
    {
        public static Dog Dog1 { get; } = new();
        public static Dog Dog2 => new();
    }

    internal class Program
    {


        static void Main(string[] args)
        {
            var d1 = DogHouse.Dog1;
            var d2 = DogHouse.Dog1;
            var d3 = DogHouse.Dog2;
            var d4 = DogHouse.Dog2;
            var isSame1 = d1 == d2;
            var isSame2 = d3 == d4;
            Console.WriteLine($"isSame1:{isSame1},isSame2:{isSame2}");
        }
    }