how to use meta

The meta-object SystemMeta-object provides Signal/slot, run-time type information, and dynamic property systems for inter-class communication.The use of Meta-object is based on the following three points: Qobject provides a common base

Responsive layout and response Layout I. Overview A responsive design is a display mechanism for the perfect layout of webpage content on any device. HTML5 and CSS3 are even more powerful. HTML5 emphasizes simplifying tags, such as

HTML Basics statement helps the browser to display the Web page correctly. The element defines the entire HTML document. Modern websites use meta to declare the encoding format of page content, and we recommend this approach:Reference:head Element (

HTML Language Standard NOTES: Meta tags are very important to the development of the website, it can be used to identify the author, format the page, annotate the content feed and keywords, and refresh the page and so on.  Google announced in 2009

Http://www.cocoachina.com/ios/20150714/12555.htmlThis article is translated by Iron Man-like Chingo (Weibo) from Apple's official document: Adopting multitasking enhancements on the ipad, which focuses on the multitasking capabilities of the ipad in

Requirements IntroductionNow the company wants to do the app, but the Apple store requires that after January 1, 2017, all the docking sites must be SSL encrypted, so the company can only apply to purchase SSL. But the general user access will be 80

This article reprinted to http://www.cocoachina.com/ios/20150714/12555.htmlThis article is translated by Iron Man-like Chingo (Weibo) from Apple's official document: Adopting multitasking enhancements on the ipad, which focuses on the multitasking

Text Processing ToolsThe Three Musketeers of Linux text ProcessingGRP: Text Filtering tool (mode: pattern)Sed: text Editor-stream editorInternship on Awk:linux for gawk, Text Report Generator (formatted text)Regular expressions are used in all three

Used CSP is very depressed, reported only the site name of the violation, but there is no specific path. Is this a flaw or a deliberate design?Obviously, CSP is customized for security, the inside of the specification must be strictly formulated,

String manipulation:String slice: ${var:offset:length}A= "World"The result of ${a:2:2} is: RLTake the last few characters of the string: ${var:-length}Note: There are spaces after the colonTo take a substring based on a pattern:         ${var#*word}:

Meta HTTP-EQUIV = "refresh" Web page Jump Generally, HTML files must be browsed by the viewer. If you want to change the displayed content automatically, JavaScript, Java, CGI, and other methods are used. Now you can use Meta to automatically

This series of directories   If different links direct to a page with a large number of identical content, this phenomenon will be called "duplicate content". If a website has a large number of duplicate content, search engines will think that

First, page encoding 1. Use Label Settings page encoding The purpose of this tag is to declare the client's browser with what character set encoding to display the page, XXX can be gb2312,gbk,utf-8 (unlike MySQL, MySQL is UTF8) and so on. As a

One of the three methods for php redirection: Use the PHP built-in function Header ("Location: URL"); note: it must be executed when the webpage does not have any output. pay special attention to spaces. Method 2: Use metaecho "& lt; meta.

Used CSP is very depressed, reported only the site name of the violation, but there is no specific path. Is this a flaw or a deliberate design?Obviously, CSP is customized for security, the inside of the specification must be strictly formulated,

The "nofollow" tag is a tag proposed by Google, Yahoo, and Microsoft in the past few years. After the tag is added to the link, it will not be calculated. The search engine supports the nofollow attribute, to a large extent, it can suppress spam

Abstract: Google is currently the most popular search engine in the world for normal network surfers and website administrators. It processes up to 0.15 billion search requests per day, accounting for almost 1/3 of all searches in the world.

404??, Many people know that if they want to? The URL does not exist, the waiting to be taken to show??? In the past, in the 404 aspect of the rationale for me? The usual practice is to????? Line of words, and a person or???? A little landscaping,

How can I use PHP to achieve dynamic webpage jump .? PHP built-in function Header (Location: www.21php.com); using metaechometahttp-equivrefreshcontent0; urlwww.21php.com; using Javascript language echoscriptlan // PHP built-in functions Header

One of the three methods for php redirection: Use the PHP built-in function Header (Location: URL); note: it must be executed when the webpage does not have any output. pay special attention to spaces. Method 2: Use metaecho & lt; meta.