add and find by id for cam_dev

xuxiuxi

2019-03-04 845c62691a5b19faf67775f712f294fa0d1789f6

 QiaoJiaSystem/PerimeterAlarm/main.cpp

@@ -9,7 +9,7 @@

int main(int argc, char **argv) {
    SAVE_APP_ARGS;

    std::cout<<__DATE__<<" "<<__TIME__<<std::endl;
#ifdef GLOG
    ENABLEGLOG("./log/");
#endif