//執行
public void Execute()
{
foreach (IShape shape in _shapes)
{
_model.DeleteShape(shape);
}
}
// 重新加入所有 shapes
public void Execute()
{
int length = _shapes.Count;
for (int count = 0; count < length; count++)
{
_model.DeleteShape();
}
}
// 刪除 shape
public void BackExecute()
{
_model.DeleteShape();
}
// 取消執行
public void CancelExecute()
{
_model.DeleteShape();
}
// excute
public void Execute()
{
_model.DeleteShape(_index);
}
