This is the second of six tasks required to create a basic Windows Communication Foundation (WCF) service and a client that can call the service. For an overview of all six tasks, see the Getting Started Tutorial topic.
The next step in creating a WCF application is to implement the service interface. This involves creating a class called CalculatorService that implements the user-defined ICalculator interface..
Open the Service1.cs or Service1.vb file and add the following code:
using System; using System.Collections.Generic; using System.Linq; using System.Runtime.Serialization; using System.ServiceModel; using System.Text; namespace GettingStartedLib { public class CalculatorService : ICalculator { public double Add(double n1, double n2) { double result = n1 + n2; Console.WriteLine("Received Add({0},{1})", n1, n2); // Code added to write output to the console window. Console.WriteLine("Return: {0}", result); return result; } public double Subtract(double n1, double n2) { double result = n1 - n2; Console.WriteLine("Received Subtract({0},{1})", n1, n2); Console.WriteLine("Return: {0}", result); return result; } public double Multiply(double n1, double n2) { double result = n1 * n2; Console.WriteLine("Received Multiply({0},{1})", n1, n2); Console.WriteLine("Return: {0}", result); return result; } public double Divide(double n1, double n2) { double result = n1 / n2; Console.WriteLine("Received Divide({0},{1})", n1, n2); Console.WriteLine("Return: {0}", result); return result; } } }
Each method implements the calculator operation and writes some text to the console to make testing easier.
How to: Implement a Windows Communication Foundation Service Contract
原文：http://www.cnblogs.com/chucklu/p/4631086.html