float version = [[[UIDevice currentDevice] systemVersion] floatValue];
输出IOS 版本号
转载于:https://www.cnblogs.com/gaoxiao228/archive/2012/07/24/2606230.html
float version = [[[UIDevice currentDevice] systemVersion] floatValue];
转载于:https://www.cnblogs.com/gaoxiao228/archive/2012/07/24/2606230.html