獲取iPhone設備碼代碼如下：
NSString *idfv = [[[UIDevice currentDevice] identifierForVendor] UUIDString];//獲取設備碼
NSString *UUIDStr = [idfv stringByReplacingOccurrencesOfString:@"-" withString:@""];//去除"-"分隔符，得到有效的設備碼
UUIDStr = [UUIDStr lowercaseString];//將大寫字母轉換成小寫
NSLog(@"設備id -- %@",UUIDStr);
