public void Execute(params string[] parameters)
{
int index;
try
{
string color = parameters[1];
if (!Int32.TryParse(parameters[0], out index))
{
Console.WriteLine("Please check the correctness of the index!");
return;
}
picture.Color(index, color);
}
catch (Exception e)
{
Console.WriteLine("{0} Exception caught.", e);
}
}