recaptcha meaning

The meaning of volatile is "volatile, easy to change". The meaning of this qualifier is to indicate to the compiler that the contents of a variable may change as a result of another program's modification. Usually when a variable is declared in a program, the compiler tries to store it in a general-purpose register, such as EBX. When the CPU puts its value in the EBX, it will no longer care about the value

The meaning of void Void is "no type" and void * is "no type pointer" and can point to any data type.void specification for use of pointersThe ①void pointer can point to any type of data, that is, the null pointer is assigned to a pointer of any data type. For example:int * PINT;void *pvoid;PVOID = pint; * * But can not pint= pvoid; */If you want to assign pvoid to other types of pointers, you need to force type conversions such as: pint= (int

Label: This paper first introduces the meaning of Ken_len in the query plan of MySQL, then introduces the calculation method of Key_len, and finally, through a fake example, shows how to see how many columns of the federated index are used by Key_len.The meaning of Key_lenIn MySQL, you can view the path to the SQL statement through explain, as shown here: Mysql> CREATE TABLE t (a int primary key,

In pom4, the scope element is introduced into the dependency element, which is a very important attribute. In Maven projects, jar package conflicts and type conversion exceptions are caused by improper use of scope elements.The role of the scope element: controls the scope of use of the dependency element. In general, it is to control the scope in which jar packages are loaded and used.Scope contains five values, which are described as follows:Compile (Compilation)

leads to Frankel's most important point in this book: what is the meaning of life and what is the meaning of living. In practicing medicine, Frankel often asks patients who have undergone great pain: "Why don't you kill yourself?" "Now that you can sit in a clinic in Frankel, these people are certainly overcoming the difficulties they face in their lives and can answer his questions." Some people say that

the profound meaning of the C-language void keyword1. Overview This article explains the deep meaning of the void keyword and details the use and techniques of void and void pointer types. 2The meaning of void is literally "untyped",void* is "no type pointer",void*can point to any type of data. Void is almost only "annotated" and restricts the function of the pro

Php + ajax + json provincial/municipal drop-down lists are linked. json transmission is used to verify that parameters are transmitted during login.The following code is reserved as a mark:Function (data ){// Alert (data );Var data1 = data. replace (/\ s/gm ,"");Var data2 = data. match (/\ [(. *) \]/g ,"");// Alert (data2 );.............}The key is to understand the differences between the following pattern modifiers: www.2cto.comPerl-style Regular Expressions allow you to place a single charact

What is the meaning of the character icon on the Win10 disk? How can I disable win10 disk sharing ?, Win10 icon What is the meaning of the character icon on the Win10 disk? How can I disable win10 disk sharing? In the disk location of the Windows 10 system, we can see two icons of small people. This indicates that the current disk is in the shared state, and other users can access the current disk through

In the C language, for definitions and declarations, perhaps we are very familiar with, but not necessarily really understand!Definition means: The definition is to create a (compiler) an object, to allocate a memory space for this object and name, that is, the name of the variable or object that we normally call, once this is a memory space match, then in the definition of this object or variable life cycle, The variable name created cannot be changed, and the location of the memory space will

= "Match_parent"Android:layout_height= "Wrap_content"android:orientation= "Horizontal" > TextViewAndroid:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"Android:layout_weight= "1"Android:background= "@android: Color/black"Android:text= "111"android:textsize= "20SP" /> TextViewAndroid:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"Android:layout_weight= "2"Android:background= "@android: Color/holo_green_light"Android:text= "222"android:textsize= "20SP" />L

prompt remittance 5000 dollars to the account, see the text message, I knew it was my mother to call me.After a while, my mother's text message sent over "in the outside to work is not easy, don't always give me the money, I am very good at home, eat well, drink good." ”The National Day home, found that clothes hanging in the closet, as if not through the same.At that time inexplicable sad for a long time, suddenly think of childhood, home is very poor, parents are special province, my impressi

SQL statement meaning DB: query ( quot; SELECTCOUNT (*) FROM quot ;. DB: table ('vgallerys '). quot; whereuidIN (meaning of SELECT nbsp; pre_home_fri SQL statement DB: query ("select count (*) FROM". DB: table ('vgallerys '). "where uid IN (SELECT Pre_home_friend.fuid FROM pre_home_friend WHERE uid = '$ discuz_uid') and album = 0 "); The meaning of this s

Peter D. Turney,Patrick PantelTranslation: South China Normal University-Wu Yunyu2. Semantic vector space modelThe statistical semantic hypothesis (statistical semantics hypothesis) is the unifying theme of the various vsms discussed in this paper: the statistical patterns of human word usage can be used to indicate human meaning (statistical patterns of Human word usage can be used to figure out what people mean).This general hypothesis is the basis

Regular expressions1. Meaning of regular expressions\d matches a numeric character,/\d/=/[0-9]/\d matches a non-numeric character,/\d/=/[^0-9]/\s matches a white space character, including \n,\r,\f,\t,\v , etc.\s matches a non-whitespace character equal to /[^\n\f\r\t\v]/\w matches a character that can make up a word, including underscores\w matches a character that cannot be composed of words, equal to [^a-za-z0-9]. \ t matches a tab\ n matches a lin

When we write a program, it is always inevitable to err on the wrong way, no matter how cautious. These errors often confuse the PHP compiler. If developers are unable to understand the meaning of compiler error messages, they are not only useless, but often frustrating. When compiling a PHP script, the PHP compiler will do its best to report the first problem it encounters. This creates a problem: only when the error occurs does PHP recognize it (th

The meaning of software testing requirementsthe meaning of test requirements　Whether for development or testing, a fully accurate and predictable design is the prerequisite for a successful project. In the actual project operation, it is often felt that the testing process has various problems:1, the product quality dimension is not comprehensive, the test type is not complete;2, the test specification desi

This articleArticleAfter I read the original article, I think it is a misunderstanding. When I watch it, there is something in it, but it is of little value and cannot be taken seriously! The key to understanding this article is to confirm the content contained in "determining the Compilation Time: In this article, "determining the Compilation Time" includes determining the object creation logic. According to the context understanding of Bjarne stroustrup, this does not include determining the

Recently I have been immersed in thinking about why I am alive, and drilling into the NIU Jiao Jian is not going to get out. Takao said it would cause her to do such thinking there are two situations: one is the female pig's life in the Korean drama caused her envy and thinking, the other is dissatisfied with the current state of life, want to move to think of such problems. I have no recollection of what the fuse is, perhaps the change of the Freddy, or the prince who lives, struggles and ends

Title: Explanation Code (n (n-1)) ==0 specific meaning1) (ab) Meaning of ==0The binary representation of A and B in the same location will never be 1.2) N and n-1 if the least significant bit of n is 1, minus 1 is 0, the remainder is the same and does not meet the requirements. The least significant bit of n is 0, minus 1 o'clock, which must be lent 1 to the high. 3) (n (n-1)) ==0 meaning the most significa

Pgpgin|pgpgout|pswpin|pswpout Meaning and DifferenceQuoted from: http://ssms.cs2c.com.cn/otrs/pc.pl?Action=PublicFAQZoom;ItemID=11741The main meaning of the article is:1. Page in/out action refers to reading the pages in a block device into memory or writing a page in memory to a block deviceWhen the ever program or the data needs to being accessed and is the read in from the IT permanent location on disk,