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¿ÉÒÔÌí¼ÓÊý¾Ý£¬µ«ÊǵãÌí¼Óºó»á±¨.access violation at address 0049AB84 in module
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procedure Tstudent.add_buttonClick(Sender: TObject);
var
sqlstr:string;
begin
if (id_edit.Text='') and (username_edit.Text='') then
begin
application.MessageBox('ÇëÊäÈëÍêÕûÊý¾ÝÐÅÏ¢','Ìí¼Ó³ö´í',0);
id_edit.SetFocus;
exit;
end;
with ASQLite3Query1 do
begin
close;
sql.clear;
sql.add('insert into student values(:id,:username,:telephone,:address,:state)');
ASQLite3Query1.Params.ParamByName('id').Value:=strtoint(id_edit.Text);
ASQLite3Query1.Params.ParamByName('username').Value:=username_edit.Text;
ASQLite3Query1.Params.ParamByName('telephone').Value:=strtoint(phone_edit.Text);
ASQLite3Query1.Params.ParamByName('address').Value:=address_edit.Text;
ASQLite3Query1.Params.ParamByName('state').Value:=state_edit.Text;
execSQL;
showmessage(ASQLite3Query1.SQL.Text);
end;
end;
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