接口实现中的C＃lambda

Question

我读过一些关于lambda的文章。 但我对下面的代码有疑问，谁可以向我解释一下？

public class FakeProductRepository : IProductRepository 
{
    public IEnumerable<Product> Products => new List<Product> 
    {
        new Product { Name = "Football", Price = 25 },
        new Product { Name = "Surf board", Price = 179 },
        new Product { Name = "Running shoes", Price = 95 }
    };
}

public IEnumerable<Product> Products => new List<Product>如何工作？ 为什么当我使用“=”而不是“=＆gt;”时发生错误？：

  

错误CS0535'FakeProductRepository'未实现接口   成员'IProductRepository.Products'