名称 屏幕分辨率 代码获取屏幕大小iphone X 2436 x 1125 {375 ,812}
iphone XR 1792 x 828 {414 ,896}
iphone XS 2436 x 1125 {375 ,812}
iphone XS Max 2688 x 1242 {414 ,896}