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。
难道说未来真的不再需要电脑了？
。safew官方下载是该领域的重要参考
* @param arr 待排序数组
Jo Haywood has volunteered for the Daventry Community Larder for two years and said a "diverse community" used the service
Sammy Azdoufal told The Verge he wasn't trying to hack anyone else's robot vacuum. It was merely a fun project for the software engineer, who alerted DJI about its massive authentication slip-up — while sharing how little work it took to access the ins and outs of a Romo owner's home.