C＃接口-我該怎么做？

Question

Interface IWorkPerson
{
    public string FirstName {get; set;}
    public string LastName { get; set; }
    public string WorkPhone { get; set; }
}

interface IHomePerson
{
    public string FirstName {get; set;}
    public string LastName { get; set; }
    public string HomePhone { get; set; }
}

public class Person : IWorkPerson, IHomePerson
{
    public string FirstName {get; set;}
    public string LastName { get; set; }
    public string WorkPhone { get; set; }
    public string HomePhone { get; set; }
}

如何使Person類在C＃中實現IWorkPerson和IHomePerson ？

編譯器抱怨引用不明確。

Answer 1

看一下接口的顯式實現 。

從引用的鏈接：

// explicit1.cs
interface IDimensions 
{
   float Length();
   float Width();
}

class Box : IDimensions 
{
   float lengthInches;
   float widthInches;

   public Box(float length, float width) 
   {
      lengthInches = length;
      widthInches = width;
   }
   // Explicit interface member implementation: 
   float IDimensions.Length() 
   {
      return lengthInches;
   }
   // Explicit interface member implementation:
   float IDimensions.Width() 
   {
      return widthInches;      
   }

   public static void Main() 
   {
      // Declare a class instance "myBox":
      Box myBox = new Box(30.0f, 20.0f);
      // Declare an interface instance "myDimensions":
      IDimensions myDimensions = (IDimensions) myBox;
      // Print out the dimensions of the box:
      /* The following commented lines would produce compilation 
         errors because they try to access an explicitly implemented
         interface member from a class instance:                   */
      //System.Console.WriteLine("Length: {0}", myBox.Length());
      //System.Console.WriteLine("Width: {0}", myBox.Width());
      /* Print out the dimensions of the box by calling the methods 
         from an instance of the interface:                         */
      System.Console.WriteLine("Length: {0}", myDimensions.Length());
      System.Console.WriteLine("Width: {0}", myDimensions.Width());
   }
}

Answer 2

從接口聲明中刪除“ public”修飾符后，即可在.Net 2.0、3.0、3.5或4.0下用w.VS2010很好地編譯。 您正在使用哪個版本的Visual Studio（或正在使用Mono？），以及目標是哪個版本的.Net框架？

這段代碼絕對干凈：

public interface IWorkPerson
{
    string FirstName { get; set; }
    string LastName  { get; set; }
    string WorkPhone { get; set; }
}
public interface IHomePerson
{
    string FirstName { get; set; }
    string LastName  { get; set; }
    string HomePhone { get; set; }
}
public class Person : IWorkPerson , IHomePerson
{
    public string FirstName { get; set; }
    public string LastName  { get; set; }
    public string WorkPhone { get; set; }
    public string HomePhone { get; set; }
}

Answer 3

您必須聲明顯式實現：

public class Person : IWorkPerson, IHomePerson
{
    public string IWorkPerson.FirstName {get; set;}
    public string IWorkPerson.LastName { get; set; }
    public string IHomePerson.FirstName {get; set;}
    public string IHomePerson.LastName { get; set; }
    public string WorkPhone { get; set; }
    public string HomePhone { get; set; }
}

Answer 4

class Person : IWorkPerson, IHomePerson 
{
    public string IWorkPerson.FirstName {get; set; }
    public string IHomePerson.FirstName {get; set; }
    // etc...
 }

這稱為顯式實現 ，這是您消除相同接口成員的歧義的方法。

Answer 5

在您的課程中提供IWorkPerson.Foo和IHomePerson.Foo的實現。

我希望這些不是真正的界面。 兩者都應繼承自一個通用接口，並且我不理解表示人員既是HomePerson又是WorkPerson的抽象概念。 聽起來應該是枚舉，而不是接口。