//屏幕宽、高
#define SCREEN_WIDTH ([UIScreen mainScreen].bounds.size.width)
#define SCREEN_HEIGHT ([UIScreen mainScreen].bounds.size.height)
//1个像素的宽度
#define SINGLE_LINE_WIDTH (1.0f/[UIScreen mainScreen].scale)
//系统版本
#define IOS_VERSION [[[UIDevice currentDevice] systemVersion] floatValue]
//图片
#define ImageWithName(A) [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:A ofType:nil]]
//rgb颜色(十进制)
#define UIColorFromRGBA(r,g,b,a) [UIColor colorWithRed:r/255.0f green:g/255.0f blue:b/255.0f alpha:a]
//rgb颜色(十六进制)
#define UIColorFromHexRGB(rgbValue) \
[UIColor colorWithRed:((float)((rgbValue & 0xFF0000) >> 16))/255.0 \
green:((float)((rgbValue & 0xFF00) >> 8))/255.0 \
blue:((float)(rgbValue & 0xFF))/255.0 \
alpha:1.0] \
//DEBUG模式下,打印日志(包括函数名、行号)
#ifdef DEBUG
# define DLog(fmt, ...) NSLog((@"%s [Line %d] " fmt), __PRETTY_FUNCTION__, __LINE__, ##__VA_ARGS__)
#else
# define DLog(...)
#endif
