zfs meaning

What is the meaning of $ GLOBALS? Does $ GLOBALS contain the $ _ GET value? For example, is $ _ GET ['t'] the same as $ GLOBALS ['t? I wrote this in class: lt ;? Phpif (isset ($ GLOBALS ['t']) nbsp; echo $ GLOBALS ['t']; exit ($ _ G $ GLOBALS meaning? Does $ GLOBALS contain the $ _ GET value? For example, is $ _ GET ['t'] the same as $ GLOBALS ['t? I wrote this in class: If (isset ($ GLOBA

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?

"UTF-8 BOM header information output" What is the meaning of this sentence Ah "UTF-8 BOM header information output" What is the meaning of this sentence ------ solution -------------------- UTF-8 encoding header by default there will be two special characters, these two special characters are bom ------ solution -------------------- look at this explanation: hi.baidu.com % CE % D2 "UTF-8 BOM header informat

Meaning and usage of the $ _ SERVER variable in php $ _ SERVER [ amp; #39; PHP_SELF amp; #39;] function usage # file name of the script being executed, related to documentroot. $ _ SERVER [ amp; #39; argv amp; #39;] function usage # parameters passed to the script. $ _ SERVER [ amp; #39... Meaning and usage of the $ _ SERVER variable in php $ _ SERVER ['php _ SELF '] function usage # file name of the scri

What is the meaning of "BOM header information output of UTF-8"? what is the meaning of "BOM header information output of UTF-8, UTF-8 encoding header will have two special characters by default, these two special characters is bom, look at this explanation: http://hi.baidu.com/%CE%D2%B5%C4%B5%C6 "BOM header information output" what does this sentence mean? What does "BOM header information output of UTF-8

The ass decides another meaning of the head: Walking Management Head Author: Yang Zheng | reprinted. The original source and author information of the article must be indicated in hyperlink form during reprinting.Web: http://blog.csdn.net/yzhz/archive/2010/10/08/5927247.aspx "Ass determines the head" usually refers to the Opinion determined by the position. But I think it also has another meaning, that is

Each opening report written by a graduate student contains such a part of the "research significance". the technical skills of a non-research topic cannot be achieved through the opening report. Life is also a project. The managers of this project are ourselves. Now that this project has started, we need to find the meaning it should have. What is the significance of life? In fact, the meaning is closel

provide some constants, then what is the meaning of the interface?I think the interface is more like the upper layer of the document, in the Java Web Middle-tier development, will often provide an interface-to implement such a development model, in the case of the interface class does not change, arbitrary changes in the implementation of the other layers have no effect, as long as the interface does not gerze other layers need not change, The interf

(Root.leftnode); Arraylist.add (Root.val); Inorder (Root.rightnode); System.err.print (Root.rightnode+ " "); } }}What is the difference between JavaBean and Pojo:In a word, pojo with set and get methods is JavaBeans. But JavaBean in addition to setting and getting there are other, any Java class can be javabean.What is PojoAccording to Martin Fowler's explanation is "Plain old Java object", literally translated as "pure older Java objects", but everyone uses "simple Ja

Compiled n times the same thing. Original address:Linux compiled php configure parameters specific meaning of the Czech Heart specialMeaning of PHP compiler parameters./configure–prefix=/usr/local/phpPHPinstallation directory–with-apxs2=/usr/local/apache/bin/apxs–with-config-file-path=/usr/local/php/etc Specifying php.ini location–with-mysql=/usr/local/mysql MySQL installation directory, support for MySQL–with-mysqli=/usr/local/mysql/bin/mysql_config

Before developing a Java program, you need to install and configure the Java Development environment on a computer line. One is to install myeclipse directly, use its own JDK compilation to run, or install the JDK under our Windows or Linux platform to configure environment variables. (with the JDK version updated, the MyEclipse default JDK is the same, unless you upgrade the latest version of MyEclipse) to install the JDK under the operating system platform, the most troublesome is to configure

During the Curl Crawl, a http_code is returned, and the following is their meaning information $http_code["0"]="Unable to access"; $http _code[" -"]="Continue"; $http _code["101"]="Switching Protocols"; $http _code[" $"]="OK"; $http _code["201"]="Created"; $http _code["202"]="Accepted"; $http _code["203"]= "non-authoritative information "; $http _code["204"]="No Content"; $http _code["205"]="Reset Content"; $http _code["206"]="Partial Content"; $http

From: http://blog.csdn.net/zll01/article/details/5018413In the actual application of the site construction, prone to a lot of small mistakes, like MySQL was optimized not in place, the impact of the overall site browsing effect, in fact, the site's regular HTTP status code performance is the same, Google can not verify the site several solutions, mentions that because the 404 status page is not properly set, resulting in the Google Administrator tool can not be verified, of course, the impact is

Basic concepts of 1,HTTP requests tcp/upd/http*2,http Meaning of the request header and Response header Request header: accept:text/html,image/* (type that the browser can receive) accept-charset:iso-8859-1 (the type of encoding the browser can receive) accept-encoding:gzip,compress (the browser can receive the compression encoding type) ACCEPT-LANGUAGE:EN-US,ZH-CN (language and country type that the browser can receive) host:www.it315.org:80 (brows

The Meaning of # # # in C++/C macro definition (define)# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # define.#是字符串化的意思, the # that appears in the macro definition is a string that is followed by a parameter;eg#define STRCPY__ (DST, SRC) strcpy (DST, #src)Strcpy__ (BUFF,ABC) equivalent to strcpy__ (buff, "abc")# #是连接符号, connect the parameters together#define FUN (ARG) my# #argThen Fun (ABC)Equivalent to MYABCLet's look at a con

The usage and meaning of python @ property are fully parsed, and @ property is fully parsed. The code that you first came into contact with python is to take the length and width of the rectangle, define a rectangle class, set the length and width attributes of the rectangle, and call the length and width Through instantiation, as shown in the following code. class Rectangle(object): def __init__(self): self.width =10 self.height=20r=Rectangle(

1. What is a digital signature? A digital signature is a sign of your program as your own, and when someone sees the signature, they know it's relevant to you .2. Why digital signatures? The simplest and most straightforward answer: system requirements. Android requires every Android app to be digitally signed to install into the system, meaning that if an Android app is not digitally signed, there is no way to install it! Android uses digital signatu

attribute: LinkThis property can only be used if the compile property is undefined.General syntax Sugar: link:function (Scope,iattrs,ielement,controller) {...}The function of link function: Programmatically modify resulting DOM element instances, add event listeners, and set up data binding. To Program Method modifies the generated DOM element instance, adds an event listener, and sets the data binding. This is the place where the entire directive logic is put.The following is the

Scale means: Scaling, appearing in Contentmode, is about changing the size of the graph.Aspect means that the aspect ratio, in the contentmode meaning is to maintain the aspect ratio of the graph, keep the picture not deformed.Scale aspect Fill: while maintaining the aspect ratio (aspect), zoom the picture (scales) so that the picture fills the container (fill).Scale aspect Fit: while maintaining the aspect ratio (aspect), zoom the picture (scales) so

the game, or listening to music, the CPU is doing the program between the efficient switching let us feel that it is at the same time. 4. What is a thread ?multiple tasks can be performed within the same process, and each of these tasks I can see is a thread. thread: Is the execution unit of the program, the execution path. is the most basic unit of the CPU used by the program. Single Thread: If the program has only one execution path. Multithreading: If the program has more than one execution