/*
*
* user: administrator
* date: 2007-7-2
* time: 9:02
*/
using system;
using system.collections.generic;
namespace mymemonto
{
public interface imemonto{}
public class state
{
public state(){}
public string statename;//狀态名
public int level;//狀态級别
}
//發起者
public class originator
private class memonto:imemonto
{
private state _state;
public memonto(state st)
{
_state=new state();
_state.statename=st.statename;
_state.level=st.level;
}
public state state
get{
return _state;
set{
_state=value;
}
private state state;
public originator()
state=new state();
state.statename="begin";
state.level=1;
public string statename
get{return state.statename;}
set{state.statename=value;}
public int level
get
return state.level;
set
state.level=value;
public imemonto createmomento() {
return new memonto(this.state);
public void setstate(imemonto m)
memonto mm=(memonto)m;
this.state=mm.state;
public class caretaker:system.collections.collectionbase
public caretaker(){}
public int add(imemonto st)
return list.add(st);
public imemonto this[int index]{
return (imemonto)list[index];
list[index]=value;
public void remove(imemonto st){
list.remove(st);
public imemonto restore()
if(list.count==0) return null;
imemonto st=(imemonto) list[list.count-1];
return st;
class mainclass
public static void main(string[] args)
//console.writeline("hello world!");
originator o=new originator();
caretaker c=new caretaker();
c.add(o.createmomento());
o.statename="one";
o.level=100;
o.statename="two";
o.level=200;
imemonto m=c.restore();
while(m!=null){
o.setstate(m);
system.console.writeline(o.statename);
m=c.restore();
system.console.readline();
}