/*
tb_haocai 数据库名
*/
CString sqlStr_findid;
sqlStr_findid = "SELECT * FROM tb_haocai WHERE [长度] = "+m_Size+"";
my_find = new CSubjectinfo2(&((CMyApp*)AfxGetApp())->m_DB);
if(!my_find->Open(AFX_DB_USE_DEFAULT_TYPE,sqlStr_findid))//每次运行到这就显示“参数不足，期待是1”
{
AfxMessageBox("打开失败");
}