VC++Á¬½ÓAccess
VC++Á¬½ÓAccess
/*
*¶ÁÈ¡AccessÊý¾Ý¿âÖеÄÊý¾Ý
*/
void CMFCSQLDlg::OnButton1()
{
CoInitialize(NULL);
_ConnectionPtr m_pAppConn;
HRESULT hResult;
try
{
hResult = m_pAppConn.CreateInstance(("ADODB.Connection"));///´´½¨Connection¶ÔÏó
if(SUCCEEDED(hResult))
{
m_pAppConn->Open("Provider=Microsoft.Jet.OLEDB.4.0 ;Data Source = .\\DataBase\\aa.mdb", "","",adModeUnknown);
}
_CommandPtr m_pCommand;
_RecordsetPtr m_pRecordset;
m_pCommand.CreateInstance("ADODB.Command");
_variant_t vNULL;
vNULL.vt = VT_ERROR;
vNULL.scode = DISP_E_PARAMNOTFOUND;///¶¨ÒåΪÎÞ²ÎÊý
m_pCommand->ActiveConnection = m_pAppConn;///·Ç³£¹Ø¼üµÄÒ»¾ä£¬½«½¨Á¢µÄÁ¬½Ó¸³Öµ¸øËü
m_pCommand->CommandText = "SELECT * from myself";///ÃüÁî×Ö´®
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int func(x)
{
int countx = 0;
while(x)
{
countx ++;
x = x&(x-1);
......