python quiz

For each SEO, the question and answer platform for their help are quite a lot, the boiling point of the network today to share with you on the question and answer platform to promote the site's methods, I hope to be useful to everyone. The most popular question and answer platform today is hundreds of degrees to know and Soso to ask. There are also Tianya, Sina and Yahoo, and so on, and these quiz platform because the weight is relatively high, but al

require a complex connection to retrieve the connected/related data because it is easy to retrieve its neighboring nodes or the relationship details are not connected or indexed Two Building neo4j Database1.MYSQL database structureBecause what we're going to do is a smart quiz system for the movie, so enough data is the basis to ensure the success of the question and answer, we can't import the data one by one, so we found a MySQL database on th

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

-text files. LCTT: When used to analyze a binary program that is inexplicably present on your system, you can find suspicious file access, which is useful for tracing the intrusion.Q: What is the function of the tee 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. out In the

guess 0-60 of the number ' read-p ' Please enter your price: "Aexpr $A +1 >/dev/nullif[$?-ne0]then echo "Don't tease me, just guess the Numbers" ipplefi}guess () { if[ $A -eq $NUM ] then echo "guessed right, is $num yuan" exit0elif[ $A -gt $NUM NBSP;]NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;THENNBSP;NBsp;echo "Hey, why don't you buy it at this price?" "ipple elif[ $A -lt $NUM ] then echo "too low and too low" NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;IPPLENBSP;NBSP;NBSP;NBSP;NBSP;NBSP

significantly improve development efficiency in your development. The 19th chapter of the project-app IOS version packaged in the actual combatThe course demonstrates once again how the final project was compiled and packaged into an IOS project and demonstrated how to submit the project to the APP Store for review. For students to submit the IOS app review for reference. The 20th chapter of the project Combat-app Android version Packaging combatThe course once again demonstrates how to package

Teaching Purpose: Review the contents of the previous study, test the learning effect, shortage make-up Teaching Focus: Teaching Difficulties: Teaching Content: Quiz questions: One, fill in the blanks: The basic data structure has ____,____,____,____ four kinds. The storage structure can be divided into ____,____ according to the position of the data element in the machine. The basic requirements of the algorithm are

are shorter than the phone screen, some are longer than the screen, on the tablet and mobile phone compared to the difference is more obvious.DipExactly the same as DP, except the name is different. The dip was used in earlier versions of Android, and the DP name was later recommended for unification with SP.Sp:Abstract pixels independent of scale (Scale-independent Pixel). The SP and DP are similar but the only difference is that the Android system allows users to customize text size (small, n

Release date:Updated on: Affected Systems:Joomla! Com_quizDescription:--------------------------------------------------------------------------------Bugtraq id: 56338 Joomla! Is an Open Source Content Management System (CMS ). The Quiz component has the SQL injection vulnerability and cross-site scripting vulnerability. This vulnerability allows attackers to control applications, access or modify data, and exploit other vulnerabilities in lower-le

1.RadioWhich of the following is not a version control system: A.git B.svn C.rsync D.cvs 2.Multi-SelectWhich of the following commands can be used to get a git repository: A.git Checkout B.git Fetch C. git clone D. git init 3.JudgingLike SVN, you can share your submitted code with other developers just by using git commit A.√ B. x Git pull does not just get the version of the remote repository but also merges with the local

Why can 1,java run across platforms? Please outline the principle.Since the code compiled by the Java program is not code that can be run directly by the hardware system, it is an "intermediate code"-bytecode. A different Java Virtual machine (JVM) is then installed on different hardware platforms, which are then "translated" by the JVM into code that the corresponding hardware platform can execute. So for Java programmers, there is no need to consider what the hardware platform is. So Java can

Transferred from: http://blog.csdn.net/charles_r_chiu/article/details/478588851. What is a virtual function? What is a pure virtual function?For:The virtual function declaration is as follows: Virtual returntype functionname (Parameter); Virtual functions are introduced for dynamic bindingThe pure virtual function declaration is as follows: Virtual returntype functionname () = 0; Pure virtual functions are introduced to derive interfaces.2, why do the base classes need virtual destructors?A: The