var
DBStr: string;
begin
//设置FDDemo.sdb的路径
DBStr := gRootDir + 'data.db';
FDConnection1.DriverName := 'SQLite';
FDConnection1.Params.Add('Database=' + DBStr);
FDConnection1.Params.Add('OpenMode=CreateUTF8');
FDConnection1.Params.Add('StringFormat=Unicode');
FDConnection1.Open();