有些大拿为了隐私考虑会将笔记本的摄像头给用纸贴上. 但是看起来稍微有点不美观，下面就是个很简单的方法将本机的摄像头在系统内关闭.
打开终端逐行输入:
sudo chmod a-r /system/library/frameworks/coremediaio.framework/versions/a/resources/vdc.plugin/contents/os/vdc sudo chmod a-r /system/library/privateframeworks/coremediaioservicesprivate.framework/versions/a/resources/avc.plugin/contents/macos/avc sudo chmod a-r /system/library/quicktime/quicktimeusbvdcdigitizer.component/contents/macos/quicktimeusbvdcdigitizer sudo chmod a-r /library/coremediaio/plug-ins/dal/applecamera.plugin/contents/macos/applecamera sudo chmod a-r /library/coremediaio/plug-ins/fcp-dal/applecamera.plugin/contents/macos/applecamera
如果要恢复的话输入：
sudo chmod a r /system/library/frameworks/coremediaio.framework/versions/a/resources/vdc.plugin/contents/macos/vdc sudo chmod a r /system/library/privateframeworks/coremediaioservicesprivate.framework/versions/a/resources/avc.plugin/contents/macos/avc sudo chmod a r /system/library/quicktime/quicktimeusbvdcdigitizer.component/contents/macos/quicktimeusbvdcdigitizer sudo chmod a r /library/coremediaio/plug-ins/dal/applecamera.plugin/contents/macos/applecamera sudo chmod a r /library/coremediaio/plug-ins/fcp-dal/applecamera.plugin/contents/macos/applecamera
