获得设备和系统版本号
首先导入<sys/utsname.h >

"i386" simulator

"iPod1,1" iPod Touch

" iPhone1,1 " iPhone

" iPhone1,2" iphone 3G

" iPhone2,1" iphone 3GS

" ipad1,1" iPad

"iPhone3,1" iphone4


struct utsname systemInfo

uname(&systemInfo);

得到设备系统版本

[ UIDevice currentDevice ].systemVersioin

得到设备模型 类型

[ NSString stringWithCString: systemInfo.machine encoding: NSUTF8StringEncoding ];