hpp meaning

it's special or special, as long as we know what it means. Compromise, I think it can be called template specificity, after all, it conforms to the meaning of template specificity. by the way: "C + + Primer" This book does not have a good description of the full specificity and specificity of the meaning, resulting in a lot of ambiguity, I was confused about this problem for a long time. The original tex

Failure phenomenon: The new shipment Lenovo Notebook packing list has "the Setup poster V2.0 SC" and "Llwspec flyer V2.0 SC" Two items, for the English abbreviation, the user does not know the corresponding material, its meaning is as follows: Solution: 1. The "Setup poster V2.0 SC" In the notebook product packing list refers to the "installation instructions" in the random description and is an installation guide that can be expanded, as sh

Sometimes, our computer does not start properly, and it emits a different beep, which means that the computer has failed, we need to exclude. Beep is the computer BIOS preselection design good beep, we can according to the following content to determine exactly where the problem.Currently common BIOS has award, AMI and Poenix three kinds, of which Poenix has been award acquisition, but in many old brand machine is very common, so here is listed together. In addition to the three BIOS listed abov

First we need to understand the use of nofollow tags before we begin to enter the theme. I believe there are a lot of seoer for this label is not a lot of understanding. As shown in the following illustration: 　　 So what is the real meaning of this label? I think a lot of people with the original understanding of the author is the same, that the use of this tag we can control the weight of the site, you can prevent the chain under this ta

This article mainly introduces the meaning of class in HTML and the usage instance parsing of class in HTML. The left post also has the function explanation of HTML class. Let's take a look at this article next. First, let's introduce the meaning of class in HTML: The class attribute specifies the name of the element (classname). The class attribute is used most of the time to point to classes in a style s

Recently learning a Linux script, here is the meaning of $, $, $!, etc. in shell scripts Variable Description $$The PID of the shell itself (ProcessID)$!PID of the Shell's last running background process$?End code of the last Run command (return value)$-Flag at a glance using the SET command$*All parameter lists. such as "$*" in the Case of "" ", in the form of" $ $ ... $n "output all parameters.$@All parameter lists. such as "$@" with "" "in the cas

Tags: mysql indexShow index from TABLE_NAMEThis command helps diagnose poorly performing queries, especially if the query uses an available index.The following describes the meaning of the result column that this command displays:| Table | Non_unique | Key_name | Seq_in_index | column_name | Collation | Cardinality | Sub_part | Packed | Null | Index_type | Comment |1.TableThe name of the table.2.non_unique0 if the index cannot include a repeating word

Tags: style blog http ar color os sp on divMysql>ExplainSelectCustomer_id,first_name,last_name fromcustomer;+----+-------------+----------+------+---------------+------+---------+------+------+-------+|Id|Select_type| Table |Type|Possible_keys| Key |Key_len|Ref|Rows|Extra|+----+-------------+----------+------+---------------+------+---------+------+------+-------+| 1 |Simple|Customer| All | NULL | NULL | NULL | NULL | 599 | NULL |+----+-------------+----------+------+---------------+------+----

"One: The meaning of the MySQL query plan output column:1.id: The identification of each operation performed independently, indicating the order in which the objects are manipulated, the larger the ID value, the first execution, and, if the same, the order of execution from top to bottom.2.select_type: The type of each SELECT clause in the query.3.table: Name, the name of the object being manipulated, usually the table name, but there are other format

Tags: instance database index meaning transactionsIn the learning database, often hear "transaction" "Index" "instance" and other terms, then what exactly do they mean?TransactionTransaction: Refers to a complete operating procedure. This process will be rolled back if there is an "accident" at any one of these steps. Transactions are often used by databases in banks.For example, if User a transfers 100 dollars to User B, then the transaction needs to

Tags: DLL space media mnt modules character Device Inux grub dynamicJanuary 10, 2017, Tuesday the meaning of the Linux file system _ each Rootfs: Root file systemFhs:linux/boot: System boot related files, such as kernel, INITRD, and Grub (bootloader)/dev: Device filesDevice files:Block devices: Random access, data blocksCharacter Devices: Linear access, by characterDevice number: Main device number (major) and secondary device number (minor)/etc: Prof

Tags: number let [email protected] syn ber guide div lsp harExcerpt from: Abs_guide: http://www.tldp.org/LDP/abs/abs-guide.pdf The meaning of shell variable $#,[email protected],$0,$1,$2 in Linux is explained:Variable Description:$$The PID of the shell itself (ProcessID)$!PID of the Shell's last running background process$?End code of the last Run command (return value)$-Flag at a glance using the SET command$*All parameter lists. such

Tags: SPL enc meaning Lisp encoder htm convenient ice astEnter Gedit in the terminal to open the file editor in the attachment, enter GED before you can tab out all.In the terminal, enter Firefox to open the attachment in Firefox, enter firef before you can tab out all.Enter "Nautilus directory" in terminal to open the folder window under the specified directory.In the terminal, enter "evince/home/weis/desktop/bird's Linux Private cuisine _ Basic Lear

Label:[Client]Port = 3306Socket =/tmp/mysql.sock [Mysqld]Port = 3306Socket =/tmp/mysql.sock Basedir =/usr/local/mysqlDataDir =/data/mysqlPid-file =/data/mysql/mysql.piduser = MySQLBind-address = 0.0.0.0Server-id = 1 #表示是本机的序号为1, which is generally the meaning of master Skip-name-resolve# Disable MySQL for DNS resolution of external connections and use this option to eliminate the time for DNS resolution for MySQL. But be aware that if you turn on this

HTTP Error code meaning: 100: Continue101: witchingProtocols200: OK201: Created202: Accepted203: Non-AuthoritativeInformation204: NoContent205: ResetContent206: PartialContent300: MultipleChoices301: MovedPermanently HTTP Error Code Description: 100: Continue 101: witching Protocols 200: OK 201: Created 202: Accepted 203: Non-Authoritative Information 204: No Content 205: Reset Content 206: partial Content 300: Multiple Choices 301: Moved Permanently

------{Catpos ($catid)}Column name------{$CAT [catname]}column pinyin------{$CAT [letter]}Column link------{$CAT [url]}Parent column name------{$CATEGORYS [$CAT [Parentid]][catname]}Parent Column link------{$CATEGORYS [$CAT [Parentid]][url]} Upper Column name------{$CATEGORYS [$CATEGORYS [$CAT [Parentid]][parentid]][catname]}Upper Column link------{$CATEGORYS [$CATEGORYS [$CAT [Parentid]][parentid]][url]}First-level parent column list{pc:content action= "category" cat

C language: array Name Description details, array meaning details 1. One-dimensional array int a [5]; A: The array name. When a is left, it indicates all the space of the entire array (10 × 4 = 40 bytes). Because the C language specifies that an array operation must be performed independently, the array cannot be operated as a whole, therefore, a cannot make the left value. a does the right value to indicate the first address (the first address is th

Serializable interface is an interface with nothing insideIts source code is public interface serializable{}, that is, nothing.If there is nothing in an interface, then this interface is an identity interface, for example, a student encountered a problem, row the wrong row for a few days did not solve, at this time, she raised her hand (motioned me to help him solve), and then I used to help him solve, then this hand is actually a sign , The problem that I can't solve is to help him solve, this

program to write but not read user calendar dataAndroid.permission.WRITE_CONTACTS.Allow program to write but not read user contact dataAndroid.permission.WRITE_GSERVICES.Allow programs to modify Google services mapsAndroid.permission.WRITE_OWNER_DATA.Allows a program to write but not read owner dataAndroid.permission.WRITE_SETTINGS.Allow programs to read or write system settings94. Android.permission.WRITE_SMSAllow programs to write text messagesAndroid.permission.WRITE_SYNC_SETTINGS.Allow prog

Uireferencelibraryviewcontroller is able to use dictionaries to query the meanings of words in their own applications.Before using the dictionary, it is necessary to use Dictionaryhasdefinitionforterm: method to determine whether there is an explanation of the choice words in the dictionary, and if so, to initialize the interpretation of the uireferencelibraryviewcontroller display words. if ([Uireferencelibraryviewcontroller dictionaryhasdefinitionforterm:@ "中文版"]) { Uireferencelibrar