ios 通过设备号获取IPhone的机型

    case "iPhone3,1", "iPhone3,2", "iPhone3,3":  return "iPhone 4"

    case "iPhone4,1":  return "iPhone 4s"

    case "iPhone5,1":  return "iPhone 5"

   case  "iPhone5,2": return "iPhone 5"

   case "iPhone5,3":  return "iPhone 5c"

    case "iPhone5,4":  return "iPhone 5c"

    case "iPhone6,1":  return "iPhone 5s"

   case "iPhone6,2":  return "iPhone 5s"

   case "iPhone7,2":  return "iPhone 6"

   case "iPhone7,1":  return "iPhone 6 Plus"

   case "iPhone8,1":  return "iPhone 6s"

 case "iPhone8,2":  return "iPhone 6s Plus"

    case "iPhone8,4":  return "iPhone SE"

    case "iPhone9,1":  return "iPhone 7"

    case "iPhone9,2":  return "iPhone 7 Plus"

   case "iPhone9,3":  return "iPhone 7"

    case "iPhone9,4":  return "iPhone 7 Plus"

   case "iPhone10,1","iPhone10,4":  return "iPhone 8"

    case "iPhone10,2","iPhone10,5":  return "iPhone 8 Plus"

  case "iPhone10,3","iPhone10,6":  return "iPhone X"

   case "iPhone11,8":  return "iPhone XR"

   case "iPhone11,2":  return "iPhone XS"

    case "iPhone11,4","iPhone11,6":  return "iPhone XS Max"

    case "iPhone12,1":  return "iPhone 11"

    case "iPhone12,3":  return "iPhone 11 Pro"

    case "iPhone12,5":  return "iPhone iPhone 11 Pro Max"