explain gigabytes

application of the mainstream scanning technology is called "password checksum" a unique scanning algorithm, it is different from our usual understanding of the checksum technology, his idea is through a certain file characteristics, This determines the checksum of an offset region, which results in two values, which can be said to be the final signature. And through experiments, it is not difficult to find that this checksum algorithm for the case of the interchange between the line and the li

Usage: Explain select [Options] infile [OUTFILE] Options: -P n, -- pages n intervals of pages to be selected. -Q, -- quiet do not print progress messages. -E, -- Even select even pages. It may be used in conjunction With the other page selection options to select the even pages from Range of pages. -O, -- odd select odd pages. It may be used In conjunction with the other page selection options to select the even Pages from a range of pages. -R, -- re

Quot; amp; quot; what does this symbol mean? please explain it to me. thank you! PHPcodepublicfunctionget_one ($ SQL, $ result_type = MYSQL_ASSOC) {$ qu "" what does this symbol mean? please explain it to me. thank you! PHP code Public function get_one ($ SQL, $ result_type = MYSQL_ASSOC) {$ query = $ this-> query ($ SQL); $ rt = mysql_fetch_array ($ query, $ result_type ); // There is a "" sy

Php Algorithms cannot be understood. please explain them one by one! Urgent $ MM_paramName quot ;;? * ** GoToRecordandMoveToRecord: createstringsformaintainingURLandFormparameterscreatethelistofparameter php algorithm cannot be understood. please explain it one by one! Urgent $ MM_paramName = "";? // *** Go To Record and Move To Record: create strings for maintaining URL and Form parameters // Create the

Who can help me explain the meaning of the collection rule strstr. substr (str. indexOf ( lt; table nbsp; gt;), 680); nbsp; does this 680 character mean? How should we count it? Include space and code lt; gt; characters? Strstr. substr (str. indexOf ( lt; tbody gt;) can someone help me explain what the collection rules mean? Str = str. substr (str. indexOf (' '), 680); // does this 680 character

Ask someone to explain this code section. For more information about passing the PHPcodefunctiondemo ( amp; $ num) {echo $ num ++. quot; lt; br gt; quot; ;}$ num = 0; demo ($ num); ask someone to explain this code, about reference transfer PHP code Function demo ( $ num) {echo $ num ++ ."";}$ Num = 0; demo ($ num ); Result: 0 1 2 3 Can you give me more details? it is best to take a st

Php Algorithms cannot be understood. please explain them one by one! Urgent $ MM_paramName = quot ;;? // *** GoToRecordandMoveToRecord: the createstringsformaintainingURLandFormparam php algorithm cannot be understood. please explain it one by one! Urgent $ MM_paramName = "";? // *** Go To Record and Move To Record: create strings for maintaining URL and Form parameters // Create the list of parameters wh

Which of the following experts can help me explain the meaning of each line after entering e when GRUB is started-Linux general technology-Linux technology and application information. The following is a detailed description. After GRUB is started, press "e" to enter the editing mode. Which of the following experts can help me explain the meaning of each line? What else do I need to use this editing mode?

ThinkPHP verification code display problems, please explain !!! This is the code: lt; p gt; verification code: lt; input nbsp; typetext nbsp; namevircode nbsp; onkeyupreturn nbsp; login_chkcode ( nbsp; this nbsp;); nbsp; nbs ThinkPHP verification code display question. please explain it !!! This is the code: Verification code: Then the local display is normal: And then upload it to the ser

. After the astar algorithm obtains the path finding path, the path can be smoothly processed using the freuch algorithm to make the movement of the person more natural. Here we only explain the principle of the astar Algorithm in a language, and do not provide a diagram to explain the entire process. If you want to understand the entire process more intuitively, we recommend that you refer to the astar tu

Create an Ioc wheel step by step (2). Explain how to create a generic factory and an ioc WheelCreate an Ioc wheel directory step by step. Net core is released. Create an Ioc wheel step by step, get some. net magic, and speed near new (1)Create an Ioc wheel step by step (2) and explain how to create a generic Factory Details about generic factories Since I said that the Ioc container is a luxury edition fact

/** 2, please explain the meaning of the characters ' \ ' in Java, what is the role?*Answer* In Java the backslash ' \ ' represents the meaning of the escape character, which is a marker** When the compiler reads this tag, it knows that the next character is not an ordinary character, but a translated character.* It will operate based on the meaning of the escaped character, rather than using the original character directly.** When encountering some s

PHP array to JSON display a code in Chinese, to explain This post was last edited by wang23412 on 2013-06-09 17:05:27 When I passed the array into JSON format in PHP, I found that Chinese would become a strange encoding. So on the Internet to find a solution, see a lot of people with the following two functions solved: Function arrayrecursive ( $array, $function, $apply _to_keys_also = False){ static $recursive _counter = 0; if (+ + $recursive

Help explain two for loops Everybody big, this is a use * output inverted right triangle example, these two for loop I am not very white, especially inside of that, can explain next, thank you ~ for ($i =1; $i for ($j = $i; $j echo "*"; } echo ""; } ------Solution-------------------- $j = $i;is to let the inner loop start value equal to the outer valueOutput one le

Please help to explain, multi-linked check, I do not understand, thank you SQL Code Please help to explain, multi-linked check, I do not understand, thank you ------Solution-------------------- SQL code select * FROM (select Bookid,count (BookID) A s degree from Tb_borrow Group by BookID) as Borr join (select B.*,c.name as Bookcasename,p.pubname,t.typ Ename from Tb_bookinfo B l

Build a master-slave DNS server and explain important transfer and recursive attributes 1. The main function of allow-recursion is to allow recursive queries on hosts to prevent DNS servers from hanging up or wasting network resources. For example, only recursive DNS queries of hosts in the 1.1.1.0/24 network segment are allowed, and recursive queries of other hosts are not allowed. Allow-recursion {1.1.1.0/24 ;}; 2. Allow-transfer: Transfers regional

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{ret=Openapiclient.execute (); } Catch(Exception e) {e.printstacktrace (); System.out.println ("Call Feedback Interface Exception---->" +e.getmessage ()); } returnret; }//defined here as an abstract method, creating an anonymous inner class or inheriting a class must implement the Public Abstract voidRun ();4. The Servicetest interface method is as follows:@Service Public class servicetest { @Autowired private bankmapper bankmapper; = {Exception. class }) publicvoid insert

Annotated way to explain mapping relationship 1 one-to-one unidirectional with Foreign KeyOne-way associated foreign key mode.1.1 Relationships are as followsExamples of student and address relationships. A student lives on an address. An address can only be occupied by one student.1.2 Address code: PackageCom.daodaofun.domain;ImportJavax.persistence.*; @Entity @table (name= "STUDENT") Public classStudent {@Id @GeneratedValue @Column (name= "student_i

!In other words, Mydog is not new out of the heap objects (object)! Mydog is just a reference to this object instance (reference)! If you know enough about the Java Runtime data region, you should be aware that this reference is placed on the virtual machine stack.Parameter passingNow you know, Mydog is just a rope, but that doesn't seem to explain why the ChangeName method didn't change the name of Mydog to "Xiao Qiang" because, according to the exis