[]VC多进程程序 在线程内部怎么给局部CString变量赋值

void CXXXView::OnSearchHand()//手动开始搜索
{
    // TODO: 在此添加命令处理程序代码
    //for (int i=0;i<10;i++)
    //{
    //    ((CComboBox*)GetDlgItem(IDC_COMBO_ADDRESS))->SetCurSel(i);
    //    ((CComboBox*)GetDlgItem(IDC_COMBO_ADDRESS))->GetWindowText(m_url[i]);
    //}
    //创建线程
    //HANDLE hThread = CreateThread(NULL,0,GetWebProc,(LPVOID)m_url,0,NULL);
    ////关闭该线程句柄，释放其引用计数
    //CloseHandle(hThread);
    HANDLE hThread1 = CreateThread(NULL,0,GetWebProc1,NULL,0,NULL);
    HANDLE hThread2 = CreateThread(NULL,0,GetWebProc2,NULL,0,NULL);
    HANDLE hThread3 = CreateThread(NULL,0,GetWebProc3,NULL,0,NULL);
    HANDLE hThread4 = CreateThread(NULL,0,GetWebProc4,NULL,0,NULL);
    HANDLE hThread5 = CreateThread(NULL,0,GetWebProc5,NULL,0,NULL);
    HANDLE hThread6 = CreateThread(NULL,0,GetWebProc6,NULL,0,NULL);
    HANDLE hThread7 = CreateThread(NULL,0,GetWebProc7,NULL,0,NULL);
    HANDLE hThread8 = CreateThread(NULL,0,GetWebProc8,NULL,0,NULL);

    CloseHandle(hThread1);
    CloseHandle(hThread2);
    CloseHandle(hThread3);
    CloseHandle(hThread4);
    CloseHandle(hThread5);
    CloseHandle(hThread6);
    CloseHandle(hThread7);
    CloseHandle(hThread8);

    hMutex = CreateMutex(NULL,FALSE,"XXX");
    if (hMutex)
    {
        if (ERROR_ALREADY_EXISTS == GetLastError())
        {
            MessageBox("本程序已经打开");
        }
        return;
    }
    ReleaseMutex(hMutex);
    Sleep(4000);

    num_Count = 0;
}
//线程函数
DWORD WINAPI GetWebProc1(LPVOID lpParameter)
{
    char m_url[256];
    for (int j=40;j<50;j++)
    {
        WaitForSingleObject(hMutex,INFINITE);
        strcpy(m_url,strSite[j].GetBuffer(0));
        //m_url = strSite[1];
        ThreadOperator(m_url);
    }
    return 0;
}
//抓取网页，而后录取到数据库中
void ThreadOperator(char* str)
{
    CGetWeb m_GetWeb;
    CString urlStr,contentStr;

    CTime tmSCan = CTime::GetCurrentTime(); 
    //urlStr.Format("%s",str);

    if(![color=#FF0000]m_GetWeb.OnGetTheWeb((CString)str,contentStr))[/color]
    {
        AfxMessageBox(m_GetWeb.OnQueryErrer());
    }
    contentStr = ReplaceWord(contentStr);
    //--------------------------------------------------
    CADOConn m_AdoConn;
    m_AdoConn.OnInitADOConn();    //连接数据库

    _bstr_t vSQL;
    vSQL = "SELECT * FROM Infor WHERE url='"+urlStr+"'";
    _RecordsetPtr m_pRecordset;
    m_pRecordset = m_AdoConn.GetRecordset((_bstr_t)vSQL);            
    CString szTime = tmSCan.Format("%Y-%m-%d %H:%M:%S"); 

    if (!m_pRecordset->adoEOF)
    {
        CString str = VariantToString(m_pRecordset->GetCollect("webcontent"));

        if (str.Compare(contentStr) != 0)
        {
            sql_update(urlStr,contentStr,szTime);
            CString temp = urlStr + " at " + szTime + "have been updated";
            temp +="\r\n";
            ::PostMessage(AfxGetMainWnd()->m_hWnd,WM_UPDATE,(WPARAM)&temp,NULL);
        }
    }
    else
    {
        sql_update(urlStr,contentStr,szTime);
        CString temp = urlStr + " at " + szTime + "have been inserted";
        temp +="\r\n";
        ::PostMessage(AfxGetMainWnd()->m_hWnd,WM_UPDATE,(WPARAM)&temp,NULL);
    }
}