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: callback function*/Ee. on ('some _ events', function (foo, bar ){Console. log ("1st listener events, parameter foo =" + foo + ", bar =" + bar );});Console. log ('first running ');Ee. emit ('some _ events', 'wilson ', 'zhong ');Console. log ('second running ');Ee. emit ('some _ events', 'wilson ', 'z ');EventEmitter. on (event, listener) sample source code Emitt

user desires the hard disk spin down to conserve battery life.). The TAILF command is not a script, but a binary execution file compiled with C code, and some Linux installations do not have this command, this article provides a way to compile and install the TAILF command.1. Tailf always reads from the beginning of the file at 1.1 points, while Tail-f starts at the end of the file.2. When the Tailf check file grows, it uses the file name, which is c

, and the sample application in this article uses this structure to achieve this purpose. There are many different parser and libraries for different environments. Libxml2 is the best parser and library for UNIX environments. It has been extended and provides support for several scripting languages, such as Perl and python. 1 tree/*************************************** ***** Compile: gcc-I/usr/include/libx

First, the system agreement 1. System environment Linux:centos-4.4.servercd apache:2.2.4 mysql:4.0.26 php:4.3.11 zendoptimizer:3.2.2 phpmyadmin:2.10.0.2 2, the source package storage location:/USR/LOCAL/SRC #为什么一定要在/usr/local/src/under the tarball? This is only customary, because this way, everyone installed in this place, the host after the maintenance and handover is very simple, and for the future of the host on the "Upgrade" and "version recognit

fileL indicates that this file is a connection file. The path and name of the file to which it is attached immediately after its file nameThe file command determines the document type by probing the file contents 4. creating Files and directoriesTouch 1.txtCat > 2.txt (Create a file with a directional character, fill in the content, press Ctrl+d to save the content)mkdir MyWork Set up mywork this directory5. Copying Files or directoriesCP filena

([thread]) returns the memory address of the hook function, the mask of the hook function, and "Debug.sethook ()" As the "count" set by the hook function. ]]Debug. Sethook (Print,"L",9)Print(Debug. Gethook ())Debug. Sethook ()--Close the hook function. Print(Debug. Gethook ())--There is no hook function to get anything. --[[results:line 2 function:013d1a70 L 9 line 3 Nil 0]Q: How can I view the registry information for Lua?A:--[[ debug.getregistry()

if("/login" ==req.url "POST" = =Req.method) {Res.writehead (200); if(!users[req.body.user] | | users[req.body.user].password!==Req.body.password) {Res.end (' Bad Username/password '); }Else{session.logged_in=true; Session.username=users[req.body.user]["Name"]; Res.end ("Authenticated"); } }Else{next (); } }); Server.use (function(Req,res,next) {//Log Out if("/logout" = =Req.url) {session.logged_in=false; Res.writehead (200

execution permissions can cause some services to run abnormally. PHP mail functions need to/bin/sh to invoke SendMail letter, so/bin/bash execution permissions can not be removed. It's a very tiring job, 2, remove the Apache log other users Read permission Apache's Access-log provides the door to some programs that appear to contain vulnerabilities locally. By s

Tags: import GPO build project localhost Send caption method image prefix3. Database Model Design 3.1 building Blueprint Project directory1. front and rear project directory analysis 2. Blueprint Build project directory Blueprint: An application or cross-domain application to make components and support common patterns. The role of blueprints: modularity of different functions Building Large applications Optimize project structure Improved readabil

. The second parameter, "value," is a required parameter, which is the value of the constant. The third parameter, "Case_sensitive", is an optional parameter, specifying whether it is case sensitive, set to true to be insensitive, and generally without specifying a third parameter, the value of the default third parameter is False.(Note: string indicates that the parameter type is a string type, mixed indicates that the parameter type can be accepted as a number of different types, Case_sensitiv

following: Value Description Value Default Attribute Value # Required Attribute values are required # Implied Property is not required # Fixed value The property value is fixed. An example of external entity reference is as follows: Lele1.xml Lele2.xml 1 Team. xml 1 The final XML document is as follows: 1 Note: Due to the injection vulnerability of external entities, the XML

Data storage (2) -- XML storage of the SAX engine (with Demo) The Android SDK only supports reading XML using the SAX technology, and the SAX adopts the sequential reading method to process XML documents. This requires that each time you read a node of the XML document, the corresponding event is triggered to process the node. The following describes how to use SAX based on an instance: Public class Book {private String name; private String id; priva

-play '). Toggleclass (' Glyphicon-pause ')); //Stop playingSource.stop (); });}2.1024 width Drawingvarurl = '.. /content/audio/. mp3 ';if(!window. Audiocontext) {alert (' Your browser does not support Audiocontext ');} Else { //Create Context varATX =NewAudiocontext (); varSource =NULL; //using AJAX to get audio files varRequest =NewXMLHttpRequest (); Request.open (' GET ', url,true); Request.responsetype= ' Arraybuffer ';//return type of configuration data //Load CompleteRequest.on

what webpage these pediatrics? It is not difficult to see, above his business novice, this idea is undoubtedly built in the castle, you do not build the foundation, where the roof? OK, mastering the production of static Web pages is a prerequisite for learning to develop the site, this is the point here, because this article is not a tutorial article, but also do not have a deep analysis of technology. I assume that you can now complete a static page, of course, do a good looking ugly is anothe

Htmlparser Use Details (2)-Node content 2010-03-18 13:41htmlparser The parsed information into the structure of a tree. node is the basis of data type for information retention.See node's definition:Public Interface Node extends cloneable;There are several types of essentials that are included in node:1, to deal with the tree-type structureTraverseFunctions that are most easily understood:Node getParent (): Get parent nodeNodeList GetChildren (): Get

available in the following ways:(1) Directly using the system SSH or telnet command can directly log on to the remote machine; If you are logged in to Linux in a win-only environment, the first thing you can do is to open the command prompt character to log in using the Windows built-in telnet command. The second is the use of remote login software "putty" (http://putty.nl/download.html),Note: In general,

1. Filter out the known current directoryetcall of the first-level catalogs (not includingetcSubdirectories and hidden directories of directories below directory, only one level directory)Ls-l | grep ' ^d 'Ls-p | grep '/$ 'Ls-f | grep '/$ 'Find. -maxdepth 1-type D! -name "."2 , quick return to last working directoryCD-each time the directory is toggled, the system will save the last working directory to the variable oldpwd in which CD- actually called

-TZVF test.tar.gzTAR-JCVF test.tar.bz2 *xv. Large file Split command split:-l Specifies the number of rows, each separated into a single file, and the default value is 1000 rows.-b Specifies the number of bytes, supported in the following units: K and M-C is similar to the-B parameter, but maintains the integrity of each line as much as possible when cutting-d The suffix of the generated file is a number, and if you do not specify this option, the default is the letterSplit-d-B 5k test.tar.bz2 #

*/ function Getbrowserwindowsize () { var de = document.documentelement; Get root node var obj = { Width: (window.innerwidth | | (de.clientwidth) | | Document.body.clientWidth), Height: (window.innerheight | | (de.clientheight) | | Document.body.clientHeight) } return obj; } /* * Debug Log Object */ function log (ID) { id = ID | | Susalogwindow; var logwindow = null; Private properties, used in individua

1. syntax definition 1) grammar: defines and describes the language structure. That is, it is called "Grammar" (or "Syntax") that is used to describe and specify the language structure in the form, but notSemantic issues. For example, I am a college student ". This is a sentence with correct syntax and semantics. The structure of the sentence (called the syntax structure) is determined by its syntax. In this example, it is a "subject-predicate structure" 2