Import与
Export 神奇之处？
输出：
[Export]
public Action<Func<int,int,int>> ExecuteCommandExport
{
get { return ExecuteCommand; }
}
public void ExecuteCommand(Func<int, int, int> command)
{
…..
}
输入：
[Import]
public Action<Func<int, int, int>> ExecuteCommandImport { get; set; }
[Export]
public Tuple<string, ICommand> AddCommand
{
get
{
return Tuple.Create("*",
(ICommand)new ActionCommand<object>(
obj =>
ExecuteCommandImport((oldValue, newValue) => oldValue * newValue)));
}
}