日志.VC

int WriteLog(char* _pcFullFileName,char* _pcWrite,int _iWriteLen,unsigned long * _pdwWritten)
{
    HANDLE hLogFile = CreateFileA(_pcFullFileName,GENERIC_WRITE,FILE_SHARE_READ,0,OPEN_ALWAYS/*CREATE_NEW*/,0);// ZC: 存在:打开;不存在:创建
    if (hLogFile == INVALID_HANDLE_VALUE)
        return GetLastError();

    if (INVALID_SET_FILE_POINTER == SetFilePointer(hLogFile,0,FILE_END))
    {
        int iErr = GetLastError();
        CloseHandle(hLogFile);
        return iErr;
    }

    BOOL B = WriteFile(hLogFile,_pcWrite,_iWriteLen,_pdwWritten,NULL);
    if (!B)
    {
        int iErr = GetLastError();
        CloseHandle(hLogFile);
        return iErr;
    }
    CloseHandle(hLogFile);
    return 0;
}