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procedure TForm5.Button1Click(Sender: TObject);
begin
if edit1.text=''then
begin
application.messagebox('请输入商品编号','提示信息',64);
edit1.setfocus;
exit;
end
else if radiobutton1.checked then
begin
with adoquery1 do
begin
close;
sql.clear;
sql.add('select * from 表2 where bianhao=:bianhao');
parameters.parambyname('bianhao').value:=trim(edit1.text);
open;
end;
end;
end;