C# 无法调用我的wcf终结点

我已经通过在wcf中创建了一个端点，并通过控制台应用程序托管了wcf

我在试图从浏览器调用的方法上放置了一个调试器，但该方法没有被调用

我从以下网站获取了参考资料：

Wcf服务：

public class CalculatorService : ICalculator
    {
        public double Add(double n1, double n2)
        {
            return n1 + n2;
        }
        public double Subtract(double n1, double n2)
        {
            return n1 - n2;
        }
    }

 [ServiceContract]
    public interface ICalculator
    {

        [OperationContract]
        double Add(double n1, double n2);
        [OperationContract]
        double Subtract(double n1, double n2);
    }

class Program
    {
        static void Main(string[] args)
        {
            var serviceUrl = "http://localhost:56264/CalculatorService.svc";
            var uri = new Uri(serviceUrl);
            ServiceHost selfHost = new ServiceHost(typeof(CalculatorService), uri);
            try
            {
                BasicHttpBinding binding1 = new BasicHttpBinding();
                selfHost.AddServiceEndpoint(typeof(ICalculator), binding1, "CalculatorService");
                selfHost.Open();
                Console.WriteLine("Service started... " + serviceUrl);
                Console.ReadKey();
            }
            catch (Exception ex)
            {

            }
            finally
            {

            }
        }
    }

承载wcf应用程序的控制台应用程序：

public class CalculatorService : ICalculator
    {
        public double Add(double n1, double n2)
        {
            return n1 + n2;
        }
        public double Subtract(double n1, double n2)
        {
            return n1 - n2;
        }
    }

 [ServiceContract]
    public interface ICalculator
    {

        [OperationContract]
        double Add(double n1, double n2);
        [OperationContract]
        double Subtract(double n1, double n2);
    }

class Program
    {
        static void Main(string[] args)
        {
            var serviceUrl = "http://localhost:56264/CalculatorService.svc";
            var uri = new Uri(serviceUrl);
            ServiceHost selfHost = new ServiceHost(typeof(CalculatorService), uri);
            try
            {
                BasicHttpBinding binding1 = new BasicHttpBinding();
                selfHost.AddServiceEndpoint(typeof(ICalculator), binding1, "CalculatorService");
                selfHost.Open();
                Console.WriteLine("Service started... " + serviceUrl);
                Console.ReadKey();
            }
            catch (Exception ex)
            {

            }
            finally
            {

            }
        }
    }

当我尝试像下面这样调用我的wcf服务端点时，我得到的结果如下：

---

操作合约应具有WebGet（）属性

 [WebGet()]
 [OperationContract]
 double Add(double n1, double n2);