获取设备类型及系统版本

import "sys/utsname.h"

/*!

• get the information of the device and system
• "i386" simulator
• "iPod1,1" iPod Touch
• "iPhone1,1" iPhone
• "iPhone1,2" iPhone 3G
• "iPhone2,1" iPhone 3GS
• "iPad1,1" iPad
• "iPhone3,1" iPhone 4
• @return null
  */
  —(void)getDeviceAndOSInfo
  {
  //here use sys/utsname.h
  struct utsname systemInfo;
  uname(&systemInfo);
  //get the device model and the system version
  NSLog(@"%@", [NSString stringWithCString:systemInfo.machine encoding:NSUTF8StringEncoding]);
  NSLog(@"%@", [[UIDevice currentDevice] systemVersion]);
  }