c quicksort code

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Experiment three shell commands (1)

/Courseware).(1) Exercise 11th, using Vi/vim/gedit or another editor, write the shell script ex1.sh, which reads as follows:The function of this script is to back up normal files that have been modified within the current directory for the last 1 days (that is, 24 hours). Use the backup system's current datetime as the file name and compress the archive. The error message is written to Error_info during the backup. Then view the backup document and the error message separately.2nd, try the four

Special symbolic meanings in common Linux shells

"inital value, a = $a/n" ((a++)) echo "After a++, a = $a" {} curly braces (Block of C ODE) Sometimes the script appears, and in curly braces there is an instruction or variable set that ends with a "semicolon". # cat FTMP-02#!/BIN/BASHA=FSH{A=INBC; ECHO-E "/n $a/n"}echo $a #./FTMP-02INBCINBC This usage is very similar to the instruction group described above, but with a different point, It executes in the current shell and does not produce subs

How to use the VIM editor

number of the line where the cursor is located."#G": for example, "15g", which means moving the cursor to the beginning of the 15th line of the article.4. Next line Mode command briefBefore using "last line mode", remember to press "esc" to determine that you are already in "command mAfter ode", press":"colon to enter"last line mode".A) List line numbers"set nu": After you enter "set nu", the line numbers are listed before each line in the file.B) ju

Object-oriented database db4o: initial knowledge db4o

are directly using the Student class's private member, age, rather than using its public interface Student.getage (), so they all break object-oriented encapsulation rules, violate interfaces, and implement object-oriented laws that should be separated. All queries are not native to 100%. Since there are so many problems, why not just use a purely object-oriented database? Some developers may say: "It lacks the support of mathematical models and is not mature enough". It is true that

Recommended C/+ + frameworks and libraries (RPM)

-protocol File transfer Library Mongoose: A very lightweight web server Muduo: C + + non-blocking network library for Linux multi-threaded servers Net_skeleton:c/c++ TCP client/server library NOPE.C: A C-based, ultra-lightweight software platform for scalable server-side and network applications. For C programmers, you can consider node. js The Onion:c language HTTP Server library is designed to be lightweight and easy to use. POCO: A C + + class library for building netw

Using application to realize the switching of scenes

Create a new 3 scene, create a new GUI Text, set different values to differentiateFile->build settings, drag three scenes (scenes in build) to see the scene name and scene index.As long as the tick is selected, these scenes will appear when released into the finished product.Then write the script to switchUsing unityengine;using System.collections;public class newbehaviourscript:monobehaviour{//Use this for Initializat ion void Start () {}//Update is called once per frame void Update () {if (Inp

Turn: the C/C ++ framework and library that are worth recommending (really powerful), and the recommended framework

-source C ++ network engine provided by game developers. Tuf o: An asynchronous Web framework built on C ++ on Qt. WebSocket ++: websocket Client/Server Library Based on C ++/Boost Aiso ZeroMQ: high-speed, modular asynchronous communication library Physics Dynamic simulation engine Box2D: a 2D physical game engine. Bullet: 3D Game physical engine. Chipmunk: fast and lightweight physical library for 2D games LiquidFun: 2D game physical Engine ODE

Aes,des encryption and decryption on Android platform

= new Byte[len];for (int i = 0 ; i DES encryption algorithmImport Java.io.unsupportedencodingexception;import Java.security.key;import Java.util.locale;import Javax.crypto.cipher;import Javax.crypto.secretkeyfactory;import Javax.crypto.spec.desedekeyspec;import javax.crypto.spec.ivparameterspec;/** * DES encryption * * @author Houjinyun * */public class Desutils {private static final Stri ng KEY = "********************";/** * DES3 Encryption of Strings * * @param str * @return encrypted string,

See how I step by step fall into a game Enterprise (mobile game security case)

.. Find the database connection.Alright ~ Found db.driver=com.mysql.jdbc.Driver *****xwanadmin?useUnicode\=t**********me=sd**********p5TqG55o********************e=xxwa**********rd=31Kb8kA********************.mysql.jd**********xwanpay?characterEncoding**********name=s**********ifp5TqG55********************mysql.jdb**********xxwanim?characterEncodin**********ame=xx**********V6ubQrRRE******************************om.mysql.j**********/xxwanuser?characterEncodi**********ername=**********=rifp

[Kali_metasploit] When installing Metasploit in the Fast-track tool, SVN expires and installs the workaround with GitHub

date svn-sourced C Ode. (: Delete your SVN checkout of Metasploit: rm-rf $HOME/metasploit (or the real path to your checkout). Clone the latest from GitHub: git clone--depth=1 git://github.com/rapid7/metasploit-framework Metasploit (or the path Where you want the clone). Go to your new Metasploit checkout, and run Msfupdate: CD Metasploit;./msfupdate (This'llget the bundle of Rub Y gems together for you). If you can ' t use the git:

Import and export between different oracle versions

. stmt_type, 8), 0, '', 'delete, '), r. check_opt, r. enable_flag, DEC ODE (BITAND (r. stmt_type, 16), 0, 0, 1) from user $ u, obj $ o, rls $ r where u. user # = o. owner # and r. obj # = o. obj # and (uid = 0 or uid = o. owner # or exists (select * from session_roles where role = 'select _ catalog_role')/grant SELECT on sys. exu81rls to public;/when migrating data between major non-adjacent versions (for example, from O r a c l e 6 to O r a c l e 8,

"Dry" foreign programmers compiled C + + resources Daquan (GO)

+ + for QT. websocket++: WebSocket client/server library based on C++/boost Aiso ZeroMQ: High-speed, modular asynchronous communication library PhysicsDynamics simulation Engine Box2d:2d's game physics engine. Bullet:3d's game physics engine. Chipmunk: Fast, lightweight 2D game Physics Library Liquidfun:2d's game physics engine ODE: Open Dynamics Engine-open source, high performance library, simulating rigid body

DTrace Patch for Python 2.7.x and 3.x

scripts. The probes isExported through the "Python" provider. The availableprobes is defined in the File:file: ' INCLUDE/PYDTRACE.D '. To learn how to use DTrace, read ' DTrace User guide ' _ ... opcode:: Function-entry (arg0, arg1, arg2) Fires when Python Co De enters a new function. *arg0* is sourcecode file path, *arg1* is the name of the funcion called, and *arg2* are line number. The probe is not fired if Python code calls C functions ... opcode:: Function-return (arg0, arg1, arg2) Fire

A sortable, doubly linked list of C implementations

node* tail = NULL; Number of nodes static int count = 0;/** * Create node, return node pointer after success * \param void* value incoming pointer * \return node* */static node* CreateNode (const void* value) {n ode* n = (node*) malloc (sizeof (node)); if (!n) {cout /** * Determines whether the linked list is empty * \return */bool Dlink_is_empty () { return count = = 0;} /** * Returns the size of the linked list * \return count */int dlink_size (

C + + Open source Encyclopedia

++/boost Aiso ZeroMQ: High-speed, modular asynchronous communication library PhysicsDynamics simulation Engine Box2d:2d's game physics engine. Bullet:3d's game physics engine. Chipmunk: Fast, lightweight 2D game Physics Library Liquidfun:2d's game physics engine ODE: Open Dynamics Engine-open source, high performance library, simulating rigid body dynamics. Ofxbox2d:box2d Open source Framework wrapper. Simbody

JS Judging keyboard keys

This article turns from: NAMEHWH website: http://www.cnblogs.com/hanwenhua/articles/3365154.htmlwindow.document.onkeydown = Disablerefresh; function Disablerefresh (evt) {evt = (evt) evt:window.eventif (Evt.keycode) { if (Evt.keycode = =) { nbsp //do something}}}keycode 8 = BackSpace Backspacekeycode 9 = Tab Tabkeycode = Clearkeycode = Ente Rkeycode = Shift_lkeycode = Control_lkeycode = Alt_lkeycode = Pausekeycode = Caps_lockkeycode = Escape E Scapekeycode = Space Spacekeycode = Priorkeycode = N

Recommended Open-source C + + frameworks and libraries

lightweight web server Muduo: C + + non-blocking network library for Linux multi-threaded servers Net_skeleton:c/c++ TCP client/server library NOPE.C: A C-based, ultra-lightweight software platform for scalable server-side and network applications. For C programmers, you can consider node. js The Onion:c language HTTP Server library is designed to be lightweight and easy to use. POCO: A C + + class library for building networks and Internet-based applications that can run on

Optimization of test questions on PHP surface

* PHP Performance issues * 1.PHP syntax improper use * 2. Use PHP language to do what it is not good at * 3. The service that uses the PHP language link does not give the force * 4.PHP itself does not do the thing * * PHP Performance Problem Resolution direction * 1.PHP language-level performance optimization ( Code optimization) * 2.PHP Peripheral Problem performance optimization (linux,mysql, disk, etc.) * 3.PHP Language performance optimization (c-tier) * * Use AB pressure test (-N Request nu

Building android AOSP on Mac OS X Mountain Lion

/HOST_DARWIN-X86.MK: the: * rerunning ThisCommand Build/CORE/COMBO/HOST_DARWIN-X86.MK: the: *****************************************************Build/CORE/COMBO/HOST_DARWIN-X86.MK: -: ***Stop: Stop.* * Don'T has a product spec for:'Full_maguro'* * Does the right repo manifest?What's it complaining about hell?Quickly looking up what Xcrun is doing I discovered it's some helper program do select the correct XCode version/sdk etc. It didn ' t suprise me that it failed as I Don has XCode installed.

Zabbix Mail Alert Python script code

This article describes the Zabbix Mail alert Python script code #!/usr/bin/python#-*-coding:utf-8-*-"" "Zabbix SMTP Alert script from Qq.auth:json" "" Import sysimport emailimport Smtpl Ibimport osfrom email.mime.text Import mimetextfrom email.mime.multipart import mimemultipart# mail send list to who #mailto_ list=["Winson.zhou@gmail", "zhoufr@youqudao.com"] #设置服务器, user name, password mail_host= "smtp.exmail.qq.com" mail_user= " 123456789@qq.com "mail_pass=" 123456789 "mail_postfix=" qq.co

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