ASP.NET学习之匿名方法

代码

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace AnonymousMethod
{
/// <summary>
/// apply a delegate!
/// </summary>
/// <param name="s"></param>
delegate void WriteString( string s);
class Program
{
static void Main( string [] args)
{
// define an instance of delegate, which is anonymous
WriteString print = delegate ( string j)
{
Console.WriteLine(j + " of Anonymous Method! " );
};
// call the anonymouse methode
print( " The delegate using the anonymous method is called. " );
// rederict the method to a named methode
print = new WriteString(Program.NamedMethode);
// call the name methode
print( " The delegate using the Named Methode is called. " );
int ? i = null ;
if ( ! i.HasValue)
{
Console.WriteLine( " oh!i have nothing " );
}
Console.Read();
}
/// <summary>
/// define a name methode
/// </summary>
/// <param name="k"></param>
static void NamedMethode( string k)
{
System.Console.WriteLine(k);
}
}
}