//设置背景颜色
self.view.backgroundColor = [UIColor redColor];
//获取手机物理尺寸
//CGSize 结构体 元素的结合 bounds:size
//CGPoint
//CGRect
CGFloatw = [UIScreen mainScreen].bounds.size.width;
CGFloath = [UIScreen mainScreen].bounds.size.height;
NSLog(@"w=%f h=%f",w,h);
//获取手机原点坐标
CGFloat x = [UIScreen mainScreen].bounds.origin.x;
CGFloat y = [UIScreen mainScreen].bounds.origin.y;
NSLog(@"x=%f y=%f",x,y);
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