procedure TForm1.FormCreate(Sender: TObject); begin edit1.text:='请输入你的是什么打印机'; end; procedure TForm1.Button1Click(Sender: TObject); begin if edit1.Text='激光打印机' then showmessage('激光打印机') else edit1.Text='喷墨打印机' then showmessage('喷墨打印机') else showmessage('不知道是机还是鸡') end;中不中啊?
uses printers procedure TForm1.Button1Click(Sender: TObject); var pp:TPrinter; begin pp:=Tprinter.Create ; listbox1.Items :=pp.Printers; //得到打印机列表 end;
begin
edit1.text:='请输入你的是什么打印机';
end;
procedure TForm1.Button1Click(Sender: TObject);
begin
if edit1.Text='激光打印机' then
showmessage('激光打印机')
else edit1.Text='喷墨打印机' then
showmessage('喷墨打印机')
else showmessage('不知道是机还是鸡')
end;中不中啊?
procedure TForm1.Button1Click(Sender: TObject);
var
pp:TPrinter;
begin
pp:=Tprinter.Create ;
listbox1.Items :=pp.Printers;
//得到打印机列表
end;
不准确