phone quiz

Q: For Baidu search on-line Aurora algorithm, how should we respond?Ze Industry construction Station NET Webmaster Yang Zeyi Answer: Baidu on May 30, 2018 on-line the Aurora algorithm, aimed at advocating The resource side attaches importance to the website landing page time specification . The time factor of landing page is the important reference for Baidu to search and judge the website to collect, display and sort the result. In order to provide users with a more satisfying search experienc

Concurrentmodificationexception exception.Concurrent containers support concurrent traversal and concurrent updates.The main classes are Concurrenthashmap, copyonwritearraylist and Copyonwritearrayset, read this article to learn how to avoid concurrentmodificationexception.8. What is the Executors class?Executors provides some tool methods for the Executor,executorservice,scheduledexecutorservice,threadfactory and callable classes.Executors can be used for convenient creation of thread pools9.

How do I set a graded title for a topic in Word Quiz? In the paper, the general is divided into several major questions, each one will have some small problems. In this case the headline is generally below bold, the small title will be empty two lattice (empty out the big question of the title and punctuation part), the content of the small problem will be indented. As pictured. For this format, I usually handle it in a paragraph. 1, set

");System.out.println (m2.blood+ "" +m2.fire+ "" +m2.defend ");}Correct result:1100 15 102250 85 32350 100 420 0 0// Here are the official answers . Public class Hello { Public Static class moba{Private int blood=100;Private int fire=15;Private int defend=10;Private Static int sum= 0; Public void eat () {blood+=50;} Public void Sport () {fire+=10;} Public void sleep () {defend+=2;}Moba () {sum+ +;} Public Static int getsum () {return sum;} Public Static void defeat (Moba A,moba b) {A.blood+=b.b

There is a special set of sequence A1,a2,..., which is defined as follows: a1=1,a2=2,..., A (n) =2*a (n-1) +a (n-2). The value of the number of items in the K.Requirements: The first line is the number of groups of test data followed by n-line input, each group of test data accounted for 1 rows, including a positive integer k (1#include C Language Quiz 1

Swoole:See the explanation on the Internet"Implementing the real-time asynchronous task queue;PHP's asynchronous, parallel, high-performance network communication engine, written in pure C, provides the PHP language for asynchronous multithreaded servers, asynchronous TCP/UDP network clients, asynchronous MySQL, asynchronous Redis, database connection pooling, Asynctask, Message Queuing, millisecond timers, Asynchronous file read-write, asynchronous DNS query. Swoole built-in Http/websocket serv

You can measure how much you know about this knowledge. In the title after I refer to the original Bo main article and comment on the topic analysis, we compete to shoot bricks. The quiz: 1: 1 3 2: 1 "Foo" | | 0 3: 1 | | "Foo" 0 4: (1,2,3) 5: x = {Shift:[].shift}; X.shift (); 3:x.length; 6: {Foo:1} [0] 7: [True, False] [+true, +false] 8: + + '. Split (') [0] 9: A:B: c:d: e:f: G:1, 2, 3, 4, 5; 10: {a:1, b:2} [["B"]] 1 "B" + 45 12: {A:{b:2}} 13: (f

has entered China in the hope of focusing on its core business search, but in order to broaden its scope, Google has chosen to work with its heterogeneous partners, which are leaders in the industry; second, Google's communication with Tianya is based on a starting point, that is people-oriented, user-centered philosophy.He said that Google's cooperation with the Tianya is also closely related to Google's future search direction, Google in Chinese web search is very confident, but the network h

(c) cA: $attr represents an array, then the length of the array can be obtained by $attr.length with CountThe B:unset () method cannot delete an element inside an arrayThe c:php array can store the characteristics of any type of data weakly typed language.d:php only indexed arrays39. The following statement is incorrect (B)A: The keyword used by fuzzy queries is likeB: Sort query asc is descending, desc is ascending ase is ascending; DESC is descendingC: The keyword used for paging queries is l

fragmented log small files that are not cleaned up, it may occur7 , brief RAID0 , RAID1 , RAID5 working principle and characteristics of three kinds of working modes1, RAID0Split data sequentially in bits or bytes, parallel read/write on multiple disks, high data transfer rate, but no redundancy2, RAID1data redundancy is achieved through disk data mirroring, resulting in mutually backed-up data on paired independent disks. Provides high data security and availability, but disk space utilization

; Echo stu{11..12}: ' Cat/dev/urandom|tr-dc 0-9|fold-w8|head-1 ' |xargs-n1|tee-a pass. txt|chpasswdMethod 3: Gorgeous from D-toneThere is a wrong argument, cut should take the second field should be-f2 the result should be: Echo stu{21..30} | Tr ' \ n ' | Sed-e ' S/^/useradd/'-E ' s/\ (stu[0-9]\{2\}\) $/\1 \\ echo "\ 1: ' Echo $[$RANDOM **3] | Cut-c1-8 ' "| Tee-a UserInfo.txt | Cut-d:-f2 | passwd--stdin \1/' | BashFunction: Create 10 users is stu21-stu30 its password is random number variables r

system is consistent after the end of the transactionIsolated isolation: Things that are executed concurrently cannot see each other's middle stateDurable persistence: All changes made after the transaction is completed will be persisted, even if a catastrophic failure has occurred.58. What is data dirty read, Phantom Read, non-repeatable read?Dirty read: The rollback of a transaction is performed after reading to the modified but uncommitted transaction content. In other words, a dog forced to

/-type F-name "*.txt"-exec sed-i ' s#training#oldboy#g ' {} \; [Email protected]~]# sed-i ' s#training#oldboy#g ' find/data/-type f-name ' *.txt ' [[email protected]~]# sed-i ' S#trai Ning#oldboy#g ' $ (find/data/-type f-name "*.txt")1.10 Find/oldboy all 7 days ago the file that is greater than 1M, ending with log, is copied to/TMP.Law one: find/oldboy/-type f-name "*.log"-mtime +7-size +1m |xargs-i cp {}/tmp/Method II: Find/oldboy-type f-name "*.txt"-mtim E+7-size +1m-exec cp {}/tmp/\ Three: C

would the Vectorize this code to run without all for loops? Check all the Apply. A: v = A * x; B: v = Ax; C: V =x ' * A; D: v = SUM (A * x); Answer: A. v = a * x; v = ax:undefined function or variable ' Ax '. 4.Say you has a vectors v and Wwith 7 elements (i.e., they has dimensions 7x1). Consider the following code: z = 0; For i = 1:7 Z = z + V (i) * W (i) End Which of the following vectorizations correctly compute Z? Check all the Apply.

and adds the functionality that some Web applications require. Unlike normal ApplicationContext, Webapplicationcontext can be used to handle theme styles, and it also knows how to find the appropriate servlet.67. What is the controller of the Spring MVC framework?The controller provides access to the application's behavior, typically through the service interface. The controller parses the user's input and translates it into a model that is presented to the user by the view. Spring implements t

1. The rules for Java identifiers are like thisIdentifiers consist of letters, numbers, underscores "_", dollar Sign "$" or the renminbi symbol "￥", and the first letter cannot be a number. That is, in addition to _ $￥ these 3 symbols, identifiers can only have numbers and letters, what parentheses, so that is not part of the identifier.You cannot use keywords and reserved words as identifiers.Identifiers do not have a length limit.String $;String Y2;String idfkd$fff;String ADKYDKJK;String _DJFK

allocation strategy, and briefly describe its principle 12345 轮询：默认的方式，按时间顺序依次分配weight:根据服务器权重进行轮询分配ip_hash:按ip的hash值进行分配，可以解决session保持url_hash:按访问url的hash结果来分配请求，使每个url定向到同一个后端服务器，后端服务器为缓存时比较有效fair:按服务器响应时长进行分配 12, crontab timing: In November, every day in the morning 6 to 12 points, every 2 hours to perform a/usr/bin/httpd.sh how to achieve 1 06-12/2*11*/usr/bin/httpd.sh 13, iptables prohibit IP 10.10.10.1 access to local 80 port

filter?Answer: The tee filter is used to send output to multiple destinations. If used for pipelines, it can copy the output to one file and copy the other to the screen (or some other program).[Email protected]:~$ ll/etc | NL | Tee/tmp/ll.outIn the example above, the LL output can be captured in the/tmp/ll.out file and also displayed on the screen.Q: Export PS1 = "[Email protected]:\ $PWD: What is this command doing?]A: This export command changes the login prompt to display the user name, the

a Windows system, which of the following statements is correct?A. The Linux partition is permanently created on the computer's hard driveB. Linux partitions are temporarily created on the computer's hard driveC. No Linux partition was created Gnome,unity,kde is based on the underlying software to display the graphical interface?A. GrubB. X ServerC. Partitioning software What is the role of the swap partition?A. Storing important software for Linux startupB. Storing files downloaded on the w

RM command do?A. Copying filesB. Deleting a fileC. Upload the file to the networkD. Put the file into the Recycle Bin Which of the following commands can display the first few lines of a file?A. HeadB. TailC. Top What is the command prefix that does not require login (toggle) to run the command as root, which can be root?A. sudoB. BerootC. NowD. Impossible I forgot how to use the mkdir command, what should I do?A. In the Linux forum shouted, "Come on, do me a favor."B. Man mkdirC. Help mk