chapter 10 nervous system

Chapter 10 Redis persistence-RDB + AOF, redis-rdb Note: This article mainly references Redis Design and Implementation 1. Redis persistence Methods RDB Execution mechanism: snapshot. The key-value binary format in databases is directly stored in the rdb file. Advantage: High Performance (because it is a snapshot, and the execution frequency is lower than aof, And the binary form of key-values is

DirectX is a game API on Windows. A few years ago, game developers struggled with hardware incompatibility, making it difficult for everyone to play the same game. Later, Microsoft launched DirectX. It provides a single and clean API for game developers to achieve compatibility with different types of hardware. Due to the release of DirectX, the number of games on the Windows platform has increased significantly. This chapter contains the following co

program and are defined in the general form of an extern type descriptor function name (formal parameter list), for example:extern int f (int a,int B) is implied as extern if there is no indication of extern or static in the function definition. When calling external functions defined in other source files in a function of a source file, an extern description is applied to an external function. For example:F1. C (source file one)Main (){extern int F1 (int i); /* External function description, i

As there are too many notes in Chapter 10, I will post the previous notes first. 1. functions used to open various devices Device Function used to open a device File Createfile (pszname is the path name or UNC path name) Directory Createfile (pszname is the path name or UNC path name ). if you specify the file_flag_backup_semantics flag when calling createfile, Windows al

Rigid Body Plane Motion Teaching Objectives 1. Identify the characteristics of the Plane Motion of the rigid body, master the method of studying the plane motion, and correctly judge the rigid body in the plane motion. 2. Be proficient in the use of various methods-the baseline method, the instantaneous method, and the velocity projection method to find the velocity of any point in a plane image. 3. The base point method is used to calculate the acceleration of any point in a plane image. Highl

= $ RANDOM * 10/32768; echo $ number RANDOM can only generate RANDOM numbers between 0 and 32767. Use set to view all variables (including environment variables and custom variables) The child process only inherits the environment variables of the parent process. The child process does not inherit the custom variables of the parent process. Set your own variables to the files or other programs that will be called later. use the expert variable name.

heightResizeby (x, y) x, y indicates the difference between the new window and the original window5. Navigate to a specific target or open a new window: window.open (URL, target location, attribute string, whether to replace history)A.opener represents the original Window object that opens this windowA.closed Indicates whether the browser is closed6. If the pop-up window is masked by the browser's built-in program, window.open () returns NULL, and if blocked by the plugin, it throws an error an

Chapter 10 Attribute Abstract: This chapter discusses attributes and indexers in C #. I. Attributes Static, instance, and virtual attributes L avoid direct access to type fields or access using cumbersome accessors L Data encapsulation is well implemented. For example, it is transparent to users to change fields and maintain attributes. L attribute is used f

Chapter 10: configure notificationPurpose: to configure the notificationnotifiermngr resource type in notification, configure the resourceowner attribute, and Configure SNMP to accept the trap of VCs. Notification OverviewWhen VCs detects an event, you can notify: 1. generate an SNMP (V2) trap to the specified SNMP Console 2. send an e-mail message to the specified receiver VCs to ensure that no event infor

steps that describe how the role interacts with the system to achieve the goalExtended scenario: Describes some extended interactions, such as some unexpected situations10.3 Spec Sheetfunction manualFirst, define the relevant concepts.Second, standardize some assumptions.Thirdly, avoid some misunderstandings and define some boundary conditionsDescribe the mainstream userFive, some good features will have side effectsSix, the quality of service descri

18. C # extended methods (Chapter 10, 10.1-10.2 ), Today's topic: Let's talk about the expansion method. I really lament my article. It's a miserable one. Let's review the article, looking at it, I also forgot what kind of mentality I wrote at that time. Haha, modern people are so casual and may be too indifferent. Then I wrote it, which will always be helpful, there will also be gains. The extension method

copying function, you need to copy all the variables in the copying function. To add a member variable for class, you must modify the copying function at the same time.So be sure to copy the base class component very carefully when composing the copying function for derived class. Those ingredients are often private, so you can't access them directly, so you should let derived class The copying function calls the corresponding base class function:derivedcustomer derivedcustom::operator= (const

be decorated with the This keyword The type of the first argument cannot be a pointer type 　　Find the right way　　When we use the SetName, we will find in the instance method first, whether there is this method, if not, will look for the signature in the introduction of the method of matching, it is possible that all overloaded situations occur, based on "who better" find the method and execute.　　To extend an empty typeis actually an extension of object objects, such as1 Static class Ob

. Therefore, the root directory size is 224*32/512 = 14, which occupies 14 sectors. Bpb_totsec16: Total number of sectors = 0xb40 = 2880 Bpb_fatsz16: the number of sectors occupied by each fat is 0x9 = 9, that is, fat1 occupies 1-9 logical sectors, and fat2 occupies 10-18 logical sectors. Bpb_secpertrk: number of sectors per track = 0x12 = 18, that is, in the standard fat12 file system, the number of sector