uses dos;
const
s: string = '*.ab';
var
fr: SearchRec;
Attr: word;
f: file;
begin
Attr := AnyFile - Directory;
FindFirst(s, Attr, fr);
if DosError = 0 then
begin
repeat
;
assign(f, fr.Name);
erase(f);
FindNext(fr);
until DosError <> 0;
end;
end.