iOS 获取iPhone、iPad设备型号

• 使用时先导入需要#import "sys/utsname.h"
  - (NSString*)deviceString{
  struct utsname systemInfo;
  uname(&systemInfo);
  NSString *deviceString = [NSString stringWithCString:systemInfo.machine encoding:NSUTF8StringEncoding];
  if ([deviceString isEqualToString:@"iPhone1,1"]) return @"iPhone 1";
  if ([deviceString isEqualToString:@"iPhone1,2"]) return @"iPhone 3";
  if ([deviceString isEqualToString:@"iPhone2,1"]) return @"iPhone 3GS";
  if ([deviceString isEqualToString:@"iPhone3,1"]) return @"iPhone 4";
  if ([deviceString isEqualToString:@"iPhone3,2"]) return @"iPhone 4";
  if ([deviceString isEqualToString:@"iPhone3,3"]) return @"iPhone 4";
  if ([deviceString isEqualToString:@"iPhone4,1"]) return @"iPhone 4s";
  if ([deviceString isEqualToString:@"iPhone5,1"]) return @"iPhone 5";
  if ([deviceString isEqualToString:@"iPhone5,2"]) return @"iPhone 5";
  if ([deviceString isEqualToString:@"iPhone5,3"]) return @"iPhone 5C";
  if ([deviceString isEqualToString:@"iPhone5,4"]) return @"iPhone 5C";
  if ([deviceString isEqualToString:@"iPhone6,1"]) return @"iPhone 5S";
  if ([deviceString isEqualToString:@"iPhone6,2"]) return @"iPhone 5S";
  if ([deviceString isEqualToString:@"iPhone7,1"]) return @"iPhone 6 Plus";
  if ([deviceString isEqualToString:@"iPhone7,2"]) return @"iPhone 6";
  if ([deviceString isEqualToString:@"iPhone8,1"]) return @"iPhone 6S";
  if ([deviceString isEqualToString:@"iPhone8,2"]) return @"iPhone 6S Plus";
  if ([deviceString isEqualToString:@"iPhone8,4"]) return @"iPhone SE";
  if ([deviceString isEqualToString:@"iPhone3,2"]) return @"Verizon iPhone 4";
  if ([deviceString isEqualToString:@"iPod1,1"]) return @"iPod Touch 1G";
  if ([deviceString isEqualToString:@"iPod2,1"]) return @"iPod Touch 2G";
  if ([deviceString isEqualToString:@"iPod3,1"]) return @"iPod Touch 3G";
  if ([deviceString isEqualToString:@"iPod4,1"]) return @"iPod Touch 4G";
  if ([deviceString isEqualToString:@"iPad1,1"]) return @"iPad";
  if ([deviceString isEqualToString:@"iPad2,1"]) return @"iPad 2 (WiFi)";
  if ([deviceString isEqualToString:@"iPad2,2"]) return @"iPad 2 (GSM)";
  if ([deviceString isEqualToString:@"iPad2,3"]) return @"iPad 2 (CDMA)";
  if ([deviceString isEqualToString:@"i386"]) return @"Simulator";
  if ([deviceString isEqualToString:@"x86_64"]) return @"Simulator";
  return deviceString;
  }