Ios 如何在objective c中获取操作系统名称

我想在objective-c中检测当前设备操作系统名称（如操作系统：iOS）

你能帮我解决我的问题吗

提前谢谢

 NSString *strName = [[UIDevice currentDevice] name];  
 NSLog(@"%@", strName);//e.g. "My iPhone"   

 NSString *strSysName = [[UIDevice currentDevice] systemName];  
 NSLog(@"%@", strSysName);// e.g. @"iOS"  

 NSString *strSysVersion = [[UIDevice currentDevice] systemVersion];  
 NSLog(@"%@", strSysVersion);// e.g. @"4.0"  

 NSString *strModel = [[UIDevice currentDevice] model];  
 NSLog(@"%@", strModel);// e.g. @"iPhone", @"iPod touch"  

 NSString *strLocModel = [[UIDevice currentDevice] localizedModel];  
 NSLog(@"%@", strLocModel);// localized version of model