+ (NSString *)getDeviceInfo {
    struct utsname systemInfo;
    uname(&systemInfo);
    NSString *platform = [NSString stringWithCString:systemInfo.machine encoding:NSASCIIStringEncoding];
    if ([platform isEqualToString:@"iPhone1,1"]) return @"iPhone 2G";
    if ([platform isEqualToString:@"iPhone1,2"]) return @"iPhone 3G";
    if ([platform isEqualToString:@"iPhone2,1"]) return @"iPhone 3GS";
    if ([platform isEqualToString:@"iPhone3,1"]) return @"iPhone 4";
    if ([platform isEqualToString:@"iPhone3,2"]) return @"iPhone 4";
    if ([platform isEqualToString:@"iPhone3,3"]) return @"iPhone 4";
    if ([platform isEqualToString:@"iPhone4,1"]) return @"iPhone 4S";
    if ([platform isEqualToString:@"iPhone5,1"]) return @"iPhone 5";
    if ([platform isEqualToString:@"iPhone5,2"]) return @"iPhone 5";
    if ([platform isEqualToString:@"iPhone5,3"]) return @"iPhone 5c";
    if ([platform isEqualToString:@"iPhone5,4"]) return @"iPhone 5c";
    if ([platform isEqualToString:@"iPhone6,1"]) return @"iPhone 5s";
    if ([platform isEqualToString:@"iPhone6,2"]) return @"iPhone 5s";
    if ([platform isEqualToString:@"iPhone7,1"]) return @"iPhone 6 Plus";
    if ([platform isEqualToString:@"iPhone7,2"]) return @"iPhone 6";
    if ([platform isEqualToString:@"iPhone8,1"]) return @"iPhone 6s";
    if ([platform isEqualToString:@"iPhone8,2"]) return @"iPhone 6s Plus";
    // 日行两款手机型号均为日本独占，可能使用索尼FeliCa支付方案而不是苹果支付
    if ([platform isEqualToString:@"iPhone9,1"])    return @"国行、日版、港行iPhone 7";
    if ([platform isEqualToString:@"iPhone9,2"])    return @"港行、国行iPhone 7 Plus";
    if ([platform isEqualToString:@"iPhone9,3"])    return @"美版、台版iPhone 7";
    if ([platform isEqualToString:@"iPhone9,4"])    return @"美版、台版iPhone 7 Plus";
    if ([platform isEqualToString:@"iPhone8,4"]) return @"iPhone SE";
    if ([platform isEqualToString:@"iPod1,1"]) return @"iPod Touch 1G";
    if ([platform isEqualToString:@"iPod2,1"]) return @"iPod Touch 2G";
    if ([platform isEqualToString:@"iPod3,1"]) return @"iPod Touch 3G";
    if ([platform isEqualToString:@"iPod4,1"]) return @"iPod Touch 4G";
    if ([platform isEqualToString:@"iPod5,1"]) return @"iPod Touch 5G";
    if ([platform isEqualToString:@"iPad1,1"]) return @"iPad 1G";
    if ([platform isEqualToString:@"iPad2,1"]) return @"iPad 2";
    if ([platform isEqualToString:@"iPad2,2"]) return @"iPad 2";
    if ([platform isEqualToString:@"iPad2,3"]) return @"iPad 2";
    if ([platform isEqualToString:@"iPad2,4"]) return @"iPad 2";
    if ([platform isEqualToString:@"iPad2,5"]) return @"iPad Mini 1G";
    if ([platform isEqualToString:@"iPad2,6"]) return @"iPad Mini 1G";
    if ([platform isEqualToString:@"iPad2,7"]) return @"iPad Mini 1G";
    if ([platform isEqualToString:@"iPad3,1"]) return @"iPad 3";
    if ([platform isEqualToString:@"iPad3,2"]) return @"iPad 3";
    if ([platform isEqualToString:@"iPad3,3"]) return @"iPad 3";
    if ([platform isEqualToString:@"iPad3,4"]) return @"iPad 4";
    if ([platform isEqualToString:@"iPad3,5"]) return @"iPad 4";
    if ([platform isEqualToString:@"iPad3,6"]) return @"iPad 4";
    if ([platform isEqualToString:@"iPad4,1"]) return @"iPad Air";
    if ([platform isEqualToString:@"iPad4,2"]) return @"iPad Air";
    if ([platform isEqualToString:@"iPad4,3"]) return @"iPad Air";
    if ([platform isEqualToString:@"iPad4,4"]) return @"iPad Mini 2G";
    if ([platform isEqualToString:@"iPad4,5"]) return @"iPad Mini 2G";
    if ([platform isEqualToString:@"iPad4,6"]) return @"iPad Mini 2G";
    if ([platform isEqualToString:@"i386"]) return @"iPhone Simulator";
    if ([platform isEqualToString:@"x86_64"]) return @"iPhone Simulator";
    return platform;
}