rdd meaning

HTTP Status Code meaningThe status code (also known as the error code) refers to the 3-digit code assigned to each request (Web click) received by the server. Most active web clicks have status code 200 ("normal"). If page is not found, a common 404 error is produced. Understanding the meaning of various status codes can quickly identify problems, find problems, and solve problems. To a large extent, improve the efficiency. The following are some comm

Setoutputfilter DEFLATE #必须的, like a switch, tells Apache to compress the content transferred to the browserSetenvifnocase Request_uri. (?: gif|jpe?g|png) $ no-gzip dont-vary #设置不对后缀gif, jpg,jpeg,png picture file compressionSetenvifnocase Request_uri. (?: Exe|t?gz|zip|bz2|sit|rar) $ no-gzip dont-vary #同上, is not set Exe,tgz,gz ... The files are compressedSetenvifnocase Request_uri. (?:p df|mov|avi|mp3|mp4|rm) $ no-gzip dont-varyAddoutputfilterbytype DEFLATE text/* #设置对文件是文本的内容进行压缩, such as text/

Shell_05 variable name, meaning variable name meaning $ n the nth domain of the current record, number of ARGC command line parameters for all fields recorded by FS $0 in the ARGIND command line (start with 0) array of ARGV command line parameters CONVFMT digital conversion format ENVIRON environment variable Association array ERRNO last system error description FIELDWIDTHS field width list, use the Space k

-UnacceptableHTTP 407-Proxy Authentication RequiredHTTP 410-Never availableHTTP 412-Prerequisite failureHTTP 414-Request-URI too longHTTP 500-Internal server errorHTTP 500.100-Internal Server error-ASP errorHTTP 500-11 Server shutdownHTTP 500-12 Application RestartHTTP 500-13-Server Too busyHTTP 500-14-Application not validHTTP 500-15-Request Global.asa not allowedError 501-Not implementedHTTP 502-Gateway ErrorHTTP error code meaning:"Continue":"101":

Meaning of springioc and DI :Full interface-oriented programming is achieved.Document CaseMVC CaseDocument Case - Dependency Injection using construction methodsInterfacepublic interface Document {void read (); void write ();}Implementation Class 1public class Worddocument implements Document {public void read () {System.out.println ("word read");} public void Write () {System.out.println ("word writer"); }}Implementation Class 2public class Pdfdoc

Description of the meaning of N and M in MySQL Data Type DECIMAL (N, M), mysqldecimal My colleague asked me what the meaning of N and M in the MySQL Data Type DECIMAL (N, M). Needless to say, M is obviously the DECIMAL place, but is N the maximum number of digits before the decimal point or the maximum number of digits after the decimal point? This is hard to remember. As a result, the test table is created

Linuxshell status Test expression meaning file Test-d Directory-s file length is greater than 0, non-empty-f regular file-w writable-L symbol connection-u file suid bit settings-r readable -x executable-nt test file1 compare to linux shell status Test expression meaning file Test-d Directory-s file length greater than 0, non-empty-f regular file-w writable-L symbol the connection-u file has s u I d bit sett

Javascript: void (0) is often used in javascript. do you know this is contained? in Javascript, void is an operator that specifies to calculate an expression but does not return a value, this article introduces the true meaning of javascript: void (0) in Javascript. For more information, see if void is an operator in javascript. this operator specifies that an expression is to be calculated but no return value is returned. I want to use the following

The meaning of 'controlfile Checkpointed at scn 'in the trace file after control file dumping The meaning of 'controlfile Checkpointed at scn 'in the trace file after control file dumping Controlfile Checkpointed at scn: 0x0000. 0006c3dc 05/14/2015 05:44:54 The information obtained from DSI is as follows: Controlfile Checkpoint at SCN: It is updated after every checkpoint (may it be tablespace, thread,

JS technique--the magical meaning of escape character "\"Bluedestiny, Never-online//Bluedestiny [at] 126.comNormally, when we are dynamically given a container innerhtml, we usually do the following things:It is not troublesome to write a habit, but is there a simpler way? Take a look at the following example:Is it not so much trouble? But there are a few points to note, see the following exampleThe place to escape is still a "\"‘---------------------

In the study of Java often encounter some words, but the general time is not very concerned about the meaning of the word, but can understand what this tool or framework can do. Occasionally summed up a bit is quite interesting. If there are omissions, you can help to add.· maven [' mevn] N. Insider, Expert· Nexus [' neks?s] N. a link or connection· Apache [? ' P??; P??] N. Apache Tribe (American Indian tribe)· Tomcat [' t?mk?t] N. a male cat;

Javascript: void (0) is often used in javascript. Do you know this is contained? In Javascript, void is an operator that specifies to calculate an expression but does not return a value, this article introduces the true meaning of javascript: void (0) in Javascript. For more information, see if void is an operator in javascript. This operator specifies that an expression is to be calculated but no return value is returned. I want to use the following

callback function to see if the data is ready (equals 4).If you are not ready, check again at intervals. Because the data is not finished downloading, we cannot use its properties and methods. If you are ready, proceed to execution; Lreadystate PropertyThe ReadyState property indicates several states in which the XMLHttpRequest object is in the process of sending/receiving data. The XMLHttpRequest object undergoes 5 different states.• 0: Uninitialized. Object has been created, but not initializ

constructor A to find, finally found A.prototype.whatever, so it returned to B.prototype whatever, and then returned to B.whateverThis realizes the inheritance relationship of the prototype chain.B.whatever==b.prototype.whatever==a.prototype.whateverThe purpose of this is that B completely inherits the thing of a, as long as there is a prototype, B's instance (generated by new B) can be obtained.However, modifying the properties and methods of an instance does not affect the class (well, JS doe

About the meaning of the Pc_tag () method in module _tag.class.php in Phpcms: in the PHPCMS system to write their own background module, in the foreground template to be displayed in the \phpcms\modules\ custom module name \classes\ folder to write a "module name _tag.class.php" file, This file outputs the custom PC label used by the front module board, and the method in the label definition class how to write I'm not going to go into this here, beca

)**************************************************************************Simple to understand is (function ($) {...}) (jQuery) defines a number of functions that need to be pre-definedThe $ (function () {}) is used to run \ Execute those preprint-defined functions after the DOM loading is complete.**************************************************************************Share some of the lessons learned when developing jquery plugins. First, look atJQuery (function () {}), all written asJQuery

What is the meaning of $this in thinkphp? Reply content: What is the meaning of $this in thinkphp? $this is the current object reference, it's PHP, it doesn't matter with thinkphp. Represents the current object, in different places of different meanings, to see the specific code. The other upstairs +1 $this must be a PHP keyword that appears inside the class to represent the current object, ty

[Data sorting] MySQL error code meaning bitsCN.com [Data sorting] meaning of MySQL error codes The MySQL error code is retained for future reference. 1005: An error occurred while creating the table. 1006: database creation failed 1007: The database already exists. An error occurred while creating the database. 1008: The database does not exist. An error occurred while deleting the database. 1009: the dat

The following small series will provide you with an explanation of the meaning of the XHProf Report field. I think it is quite good. now I will share it with you and give you a reference. Let's take a look at it with Xiaobian. Function Name: method Name. Cils: the number of times a method is called. Cils %: percentage of the number of method Calls in the total number of Calls to the same level. Incl. Wall Time (microsec): The Time taken to execu

In C #?? What's the meaning of the distinction?1. Nullable type modifier (? ):A reference type can use a null reference to represent a value that does not exist, and a value type usually cannot be represented as empty. For example: string str=null; is correct, int i=null; the compiler will error. To make a value type nullable, you can use a nullable type, which is the nullable type modifier "? "To indicate that the representation is" T? "for example: