文章浏览阅读2.4k次。android.hardware.Camera.CameraInfo info = new android.hardware.Camera.CameraInfo(); android.hardware.Camera.getCameraInfo(cameraId, info); if (info.facing == CameraInfo.CAMERA_F_camerax 判断当前是前置还是后置摄像头...
文章浏览阅读617次。bool IsPrimer(int n){ for (int i = 2; i <= sqrt(n); i++) { if (n % i == 0) return false; } return true;}int main(){ bool a = IsPrimer(103); if (a)//if(!flag) { printf("103是素数\n"); } el..._用bool类型判断素数...