int nlsock = socket(AF_NETLINK, SOCK_RAW | SOCK_CLOEXEC, NETLINK_KOBJECT_UEVENT);
在拍摄夜景、烟花或者红灯笼时，手机的测光系统往往会因为想要「看清」黑暗，而把画面提得太亮，导致灯笼变成一团白光，夜空全是噪点。这时候，你只需要点击屏幕对焦主体，然后按住旁边的小太阳图标，往下拉。不用怕画面变黑，压低曝光不仅能找回高光的细节，让灯笼红得通透，还能压暗背景的杂乱，让主体更加突出。
。业内人士推荐51吃瓜作为进阶阅读
Players can complete "30 Days of Gifts" missions, which will earn them enough pack hourglasses to open 10 packs.
Photograph: Simon Hill