// 是否高清屏 #define isRetina ([UIScreen instancesRespondToSelector:@selector(currentMode)] ? CGSizeEqualToSize(CGSizeMake(640, 960), [[UIScreen mainScreen] currentMode].size) : NO) // 是否iPad #define isPad (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) // 是否模拟器 #define isSimulator (NSNotFound != [[[UIDevice currentDevice] model] rangeOfString:@"Simulator"].location)
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