static void Main(string[] args)
{
IDataObject dtObj = DataObject.CreateDataObjec2(10, 6);
int result = dtObj.Compute();
Console.ReadLine();
}
/// <summary>
/// 拦截对 Compute 方法的调用；
/// </summary>
/// <returns></returns>
public int Compute()
{
DoSomethingBeforeCompute();
int result = _realObject.Compute();
DoSomethingAfterCompute(result);
return(result);
}