2.8.txt

《Microsoft Visual C# .NET 2003开发技巧大全》源代码

Listing 2.8 Overriding the ToString Method to Associate Your Class with a Human-
Readable String
using System;
namespace _10_ObjectString
{
public class MediaDevice
{
public override string ToString()
{
return “a generic media device”;
}
}
public class Television : MediaDevice
{
public override string ToString()
{
return “a Television”;
}
}
class Class1
{
[STAThread]
static void Main(string[] args)
{
Television tv = new Television();
MediaDevice md = new MediaDevice();
MediaDevice mdtv = (MediaDevice) new Television();
Console.WriteLine( “tv is {0}\nmd is {1}\nmdtv is {2}”, tv.ToString(),
md.ToString(), mdtv.ToString() );
}
}
}