iPhone 7即将发布了，还有谁还记得两年前发布的iPhone 6，大概也没有人注意到iPhone 6用户被屏幕闪烁灰条这个问题困扰。受这个问题影响的用户不少，可是好像并没有人知道为何会有这个闪烁...
IPhone 7 is about to be released, and who still remember the release of iPhone 6 two years ago, probably no one noticed iPhone 6 users were troubled by the screen flicker. Affected by this problem a lot of users, but it seems that no one knows why this flicker...
