uuid generator

128bit UUID Service Set in Nrf51822Uint32_tble_dajia_add_service (ble_dajia_t *p_wechat){uint32_t Err_code;ble_uuid_t Ble_wechat_uuid;Const BLE_UUID128_TBASE_UUID128 ={{0x23, 0xD1, 0xBC, 0xEA, 0x5f, 0x78,0x23, 0x15,0xDE, 0xEF, 0x12, 0x12, 0x00, 0x00,0x00, 0x00}};Ble_wechat_uuid.uuid =0x1122;Ble_uuid_ble_assign (Ble_wechat_uuid,ble_uuid_dajia_service),//?? UuidErr_code =sd_ble_uuid_vs_add (base_uuid128, (Ble_wechat_uuid.type));if (err_code! = nrf_succ

Paip. UnionPay payment interface Order No. UUIDAlgorithm In the past few days, the project has received a UnionPay payment interface. The UUID algorithm of the interface order number is described as follows: During UnionPay payment, the first four order numbers (16-byte numeric strings) submitted by merchants to the UnionPay payment system are customized. Merchants can customize the order numbers based on their business needs, the first four digit

Survival Uuid,javauuid function guid () {if (function_exists (' Com_create_guid ')) {return Com_create_guid ();}else{Mt_srand (Double) microtime () *10000)//optional for PHP 4.2.0 and up.$charid = Strtoupper (MD5 (Uniqid (rand (), true));$hyphen = Chr (45);//"-"$uuid = Chr (123)//"{". substr ($charid, 0, 8). $hyphen. substr ($charid, 8, 4). $hyphen. substr ($charid, 4). $hyphen. substr ($charid, 4). $hyphe

In Ubuntu, it is found that the system uses a UUID to make a unique representation of the hard disk partition, such as: #/DEV/SDA1#UUID =45f8-9147/media/sda1 vfat defaults,utf8,umask=000 0 1/DEV/SDA1/MEDIA/SDA1 vfat defaults,utf8,umask=000 0 1#/DEV/SDA5Uuid=5668d81168d7edad/media/sda6 ntfs-3g defaults,nls=utf8,umask=000 0 1 One advantage of doing this and using the/dev/sda5 method of direct reference part

Interface test, you need to use the UUID, which is used to generate a unique ID.1. What is a UUID?A UUID is a globally unique identifier of 128 bits, typically represented by a 32-byte string. It guarantees the uniqueness of time and space, also known as the GUID, called the UUID in the

UUID (Universally unique IDentifiers), a globally unique identifier. It is a string that identifies the storage device in the system so that it determines all the storage devices in the system. Why should I use UUID? Because the system automatically assigns device names that are not always consistent, they depend on the order in which the kernel loads the modules at startup. The same name may represent a d

List generator in Python, iterator understanding, python Generator First, let's think about a problem. For example, if we want to generate a list between 0 and, what should we do? Of course, it can be written List1 = [1, 2, 3..., 100] It can be seen that this method is not suitable for the growth of the list, so you can use the existing list in Python to generate a new list, called the list generative f

List-derivedy = [1,2,3,4,5,6,7,8= [1,4,9,16,25,36,49,64]# method One:x = [] for inch y: x. append (i*i)print(x)# method Two for inch y] Print (x) for in range (+)print for in y]print(x)Builder expressionExamplesy = [1,2,3,4,5,6,7,8]g= (i*i forIinchY#the list can be inferred, and the generator can also use an expressionPrint(g)Print(List (g))#use list to turn the generator into a list forIinchg:Print(

The Automatic Generator method is used in ionic2. The ionic2 generator method Ionic generator is a command line function. ionic2 automatically helps us create applications, saving a lot of time and increasing our speed to develop a key part of a project. Ionic generator allows us to automatically create the following p

List-generateda small topic: add 1 to the values in the list [0,1,2,3].Method 1:a=[0,1,2,3]b=[]for i in range(len(a)): b.append(i+1)a=bprint(a)Method 2:a = [1,3,4,6,7,7,8]for index,i in enumerate(a): a[index] +=1print(a)Method 3:a=[0,1,2,3,4]a=map(lambda x:x+1,a)print(a)for i in a: print(i)Method 4: (List-generated)a=[i+1 for i in range(10)]print(a)Did you see anything? Yes, the same functionality, the implementation of the code is becoming more and more streamlined.Get to the point: ge

An error occurred while updating the Code. If the verification fails before uploading, the system prompts apps areNot permitted to accessUdidAndMust not useUniqueidentifierMethodUidevice. Please update your apps and servers to associate users withVendorOrAdvertising identifiersIntroducedIn iOS 6. As a result, I am very confused about how to solve this problem. After the query, I realized that Apple had just modified the upload rules, and it was very strict with the execution. It was not allowed

Label: style blog http OS ar use SP on 2014 My environment: Virtualbox 4.3.10 r93012 Operating System: win7 Problem: a uuid conflict is prompted when virtualbox uses the copied Virtual Disk: Because a hard disk with UUID ''already exists. According to the Internet, run vboxmanage to modify the uuid and report the following error: D: \ Pr

The general server has multiple hard disk partitions, which may change when the logical location of these partitions is loaded after a reboot, and may cause confusion due to changes in disk order if the disk is mounted using traditional device names (for example:/DEV/SDA).Each block device in the Linux environment has a globally unique UUID that identifies the device, and we can replace the device name with a UUID