简单的排序算法

void CClientDlg::OnColumnclickListFile(NMHDR* pNMHDR, LRESULT* pResult) 
{
NM_LISTVIEW* pNMListView = (NM_LISTVIEW*)pNMHDR;
// TODO: Add your control notification handler code here
Cols=pNMListView->iSubItem;   //

int i = m_List_File.GetItemCount() ;
while(i--)
m_List_File.SetItemData(i,i) ;

    m_List_File.SortItems(CompareFun,(LPARAM)&m_List_File);//CListCtrl m_cList
*pResult = 0;
}



int CALLBACK CClientDlg ::CompareFun(LPARAM lParam1, LPARAM lParam2, LPARAM lParamSort)
{
CListCtrl* pList=(CListCtrl*) lParamSort;


    CString strItem1=pList->GetItemText(lParam1,Cols);

    CString strItem2=pList->GetItemText(lParam2,Cols);
if (Cols == 1)                                   
{
int i = _wtoi(strItem1) ;
int j = _wtoi(strItem2) ;
if (i>j)
{