摘至iconbutn.pas
{$A+} { Word align data }
{$B-} { Complete Boolean Evaluation Directive }
{$D-} { Debug Information Directive }
{$L-} { Local Symbol Information Directive }
{$R-} { Range checking off }
{$S-} { Stack checking off }
{$T-} { We don't need (nor want) this type checking! }