//联系人:石虎QQ: 1224614774昵称:嗡嘛呢叭咪哄
一、系统版本宏
//获取系统版本
#define IOS_VERSION [[[UIDevice currentDevice] systemVersion] floatValue]
//大于iOS 8的系统
#define ABOVE_IOS8 (([[[UIDevice currentDevice] systemVersion] floatValue] >=8.0) ? YES : NO)
二、直接判断机型
//iPhone 4 4S机型
#define IS_IPHONE_4 (fabs((double)[[UIScreen mainScreen]bounds].size.height - (double)480) < DBL_EPSILON)
//iPhone 5 5S SE机型
#define IS_IPHONE_5 (fabs((double)[[UIScreen mainScreen]bounds].size.height - (double)568) < DBL_EPSILON)
//iPhone 6 6S 7 8机型
#define IS_IPHONE_6 (fabs((double)[[UIScreen mainScreen]bounds].size.height - (double)667) < DBL_EPSILON)
//iPhone 6P 7P 8P机型
#define IS_IPHONE_6_PLUS (fabs((double)[[UIScreen mainScreen]bounds].size.height - (double)736) < DBL_EPSILON)
