输出csv文件定时保存（excel可以打开）

UINT CVc_netGraphDlg::SaveDataThread(LPVOID param)
{
    extern CVc_netGraphApp theApp;

    CString strFileName;
    CTime cFileTime=CTime::GetCurrentTime();
    CString s=cFileTime.Format("%Y-%m-%d--%H-%M-%S");
    DWORD result;
    result=WaitForSingleObject(m_evtWriteFile.m_hObject,INFINITE);

    strFileName="NT-"+s+".csv";
    ofstream outData(strFileName);//create csv file

    CVc_netGraphDlg *dlg = (CVc_netGraphDlg *)theApp.m_pMainWnd;
    while(TRUE)
    {
        if ( !dlg->m_cfgParam.flag.bWriteCsvFile )
        {
            Sleep(1000);
            continue;
        }
        result=WaitForSingleObject(m_evtWriteFile.m_hObject,100);
        if (WAIT_OBJECT_0==result)
        {
            CTime t=CTime::GetCurrentTime();
            g_SaveData.wMonth=t.GetMonth();
            g_SaveData.wDay=t.GetDay();
            g_SaveData.wHour=t.GetHour();
            g_SaveData.wMinute=t.GetMinute();
            g_SaveData.wSecond=t.GetSecond();

            outData<<
                g_SaveData.wHour<<":"<<
                g_SaveData.wMinute<<":"<<
                g_SaveData.wSecond<<","<<
                g_SaveData.f_ch[0]<<","<<
                g_SaveData.f_ch[1]<<","<<

                g_SaveData.f_ch[2]<<","<<
                g_SaveData.f_ch[3]<<endl;
        }
    }
    return 0;
    return 0;
}

用法：
1、头文件
包含
#include
#include
using namespace std;
2、定义输出流

  strFileName="NT-"+s+".csv";
    ofstream outData(strFileName);//create csv file

3、往文件写数据

            outData<<
                g_SaveData.wHour<<":"<<
                g_SaveData.wMinute<<":"<<
                g_SaveData.wSecond<<","<<
                g_SaveData.f_ch[0]<<","<<
                g_SaveData.f_ch[1]<<","<<

                g_SaveData.f_ch[2]<<","<<
                g_SaveData.f_ch[3]<<endl;

g_SaveData为结构体变量。