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Q: data collection problems-content is dynamically loaded by AJAX. Recently, I have been reading PHP Data collection knowledge, but I encountered a major difficulty in collecting some website content, for example, in Dangdang's weekly ranking:

From: http://www.nowamagic.net/librarys/veda/detail/1077   This conclusion comes from an optimization request. At first, the loading of a page was very slow and the load event could not be triggered, therefore, we hope that we can optimize the

After the page is loaded, execute the jquery Writing Method of JS and the difference This article mainly introduces the jquery Writing Method and difference of JS after page loading is completed. If you need some help, please refer to it. 1. $

Copy codeThe Code is as follows:Var iframe = document. createElement ("iframe ");Iframe. src = "http://www.jb51.net ";If (! /* @ Cc_on! @ */0) {// if not IEIframe. onload = function (){Alert ("Local iframe is now loaded .");};} Else {Iframe.

Yum is the Linux Package Manager, also known as the Yum Source, in the Yum use process, sometimes there will be loaded plugins error, restart invalid, how to solve this situation? Here is a description of the Linux yum hint loaded plugins error

The following Web. XML Example:1. Load Contextconfiglocation with spring configuration2. Configuring the Spring-mvc Contextconfiglocationservlet> Servlet-name>Spring-mvcServlet-name>

Copy Code code as follows: var iframe = document.createelement ("iframe"); IFRAME.SRC = "Http://www.jb51.net"; if (!/* @cc_on!@*/0) {//if not IE Iframe.onload = function () { Alert ("Local iframe are now loaded."); }; } else

/* Dynamically add JS or Css,url: File path, FileType: File type (JS/CSS) */ function Addjsfiles (url,filetype) { var ohead = document.getElementsByTagName (' head '). Item (0); var addheadfile; if (filetype== "JS") { addheadfile= document.

First, review the oo makeup of flash.For Flash, we can think of any visual component as a specific instance of a class file, including a SWF file.We can think of a SWF file as a concrete instance of a class, and it has all the instance objects of

When a page is opened for the first time, hide the loaded image first and then execute the animation fadeIn. Here, the load event: When all the child elements have been fully loaded, the load event is sent to this element. The Code is as follows:

In the daily development of Django, a separate PY file is often created to test the written method.# mysite/main.py#-*-coding:utf-8-*-from deploy.getinfo import *from getruntime import *def Main (): # get domain Print GetDomain () # gets

Currently, there are many web page loading progress bars on the Internet, but most of them are fixed in time.When a large amount of data is queried below, the webpage loading is slow. When the webpage is loaded, the progress bar is displayed. When

First, we need to clarify two concepts 1. window. onload: After the page is loaded, all components (images, etc.) on the page are available. 2. dom loading: The file object model is loaded before the window. onload event. It can be seen that when a

When is the Dispatcher of cakephp loaded? Why? A high score is like a question. When did the Dispatcher class of cakephp be loaded? I have been studying it for a long time and still haven't found it. Solution !! ------ Solution --------------------

We sometimes encounter php_ldap.dll in PHP that cannot be loaded when the environment is just installed. I thought php_ldap.dll was loaded by default. later I learned that we need to manually configure the decompressed php. set winntphp. ini-dist...

What is "image loading on demand" (hereinafter referred to as image loading )? In fact, the meaning of the word is: load these images as needed! Then the question comes again:Why do we need to load images as needed? Images on the website can add a

Problem phenomenon:After configuring the reverse proxy, the Web page can be accessed normally, but the JS CSS file on the page cannot be loaded and the page style is messy.(1) Nginx configuration is as follows:(2) Domain name access: JS CSS file can

Ask Php about all the variables, constants, including the data destruction mechanism loaded by include. due to the PHP running mechanism, a series of cleanup work will be performed after the program completes the operation. I know that the variable 1

Title: Use extjs2 to construct a dynamically asynchronously loaded tree Author: jrq link: http://blog.csdn.net/jrq/archive/2008/06/15/2549839.aspx body: Using extjs2, using JSON (JavaScript Object Notation) treeloader to asynchronously read data,

System OS X 10.11 With the php56 under the brew. The Nginx under Brew Under a project, during the installation process prompted missing, intl 和 apc extension, the following statements are downloaded, also loaded, but PHP is still not loaded, how to