回头接口
using System;
using System.Collections.Generic;
using System.Text;
namespace observer2
{
public interface IMaster
{
void buy_slave(ISlave some_slave);
……
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仅供参考
回头接口
using System;
using System.Collections.Generic;
using System.Text;
namespace observer2
{
public interface IMaster
{
void buy_slave(ISlave some_slave);
void send_command();
}
public interface ISlave
{
void slave_do_work();
}
class Test
{
static void Main(string[] args)
{
master master2=new master();
slave slave2=new slave();
master2.buy_slave(slave2);
master2.send_command();
}
}
public class master:IMaster
{
public delegate void some_function();
public event some_function some_event;
public void buy_slave(ISlave some_slave)
{
some_event += some_slave.slave_do_work;
}
public void send_command()
{
Console.WriteLine("master:where is my slave?");
some_event();
}
}
public class slave:ISlave
{
public void slave_do_work()
{
Console.WriteLine("slave:I am here,my lord!");
}
}
}