Tag:Analysis

  • Analysis of reasons why IE9 does not support some attributes in HTML5

    Time:2022-3-15

    This paper analyzes the reasons why IE9 does not support some attributes in HTML5 in detail, and shares it for your reference. The specific methods are as follows: As we all know, IE9 does not support offline applications in HTML5 standard and some parts of CSS3. This paper makes a brief analysis. Microsoft has released […]

  • Liver for three days and three nights, a word to do Python’s XPath analysis!

    Time:2022-2-22

    When writing a crawler, we often need to extract the information we need from the web page after we get the web page. At this time, you need to use XPath or CSS selector to locate the page element information. However, because both of them are dehumanized grammar, many people are afraid and often worry […]

  • UTF-8 and GB2312 web page codes

    Time:2022-2-19

    Recently, many students asked me about the coding of web pages. What is the difference between GB2312 and UTF-8 coding? Today’s summary.Recently, many students asked me about the coding of web pages. What is the difference between GB2312 and UTF-8 coding? Today’s summary:I wonder if you will encounter the problem that the style definition does […]

  • Analysis of Linux vmstat output method

    Time:2022-1-14

    Vmstat procs ———–memory———- —swap– —–io—- –system– —-cpu—- r b swpd free buff cache si so bi bo in cs us sy id wa 0 0 100152 2436 97200 289740 0 1 34 45 99 33 0 0 99 0 procs Column r indicates the number of processes running and waiting for CPU time slice. If […]

  • Gzip’s setting in Apache 2 and squid’s processing method analysis

    Time:2022-1-7

    Gzip can speed up large websites Sometimes the compression ratio is as high as 80%. Recently, it has been tested, at least more than 40%, which is quite good In versions after Apache 2, the module name is not gzip, but mod_ deflateIf you want to open gzip, you must open the following two modulesLoadModule […]

  • What is eclipse? Analysis of the meaning of eclipse

    Time:2021-10-11

    Eclipse   Is an open source, based on   Java   Extensible development platform. In itself, it is just a framework and a set of services for building a development environment through plug-in components. Fortunately, eclipse   Comes with a standard set of plug-ins, including   Java   Development tools (Java)   Development   Tools,JDT)。 […]

  • Parsing and serializing yaml based on snakeyaml in Java

    Time:2021-6-10

    This article mainly introduces the implementation of parsing and serializing yaml based on snakeyaml in Java. The sample code is introduced in great detail in this article, which has a certain reference learning value for everyone’s study or work. Friends who need it can refer to it 1. Overview In this article, we will learn […]

  • Solution to crash in wkwebview javascriptbridge xcode9 of IOS development

    Time:2021-4-22

    preface This article mainly introduces the related solutions to crash in IOS wkwebview JavaScript bridge xcode9, which can be shared for your reference. I won’t say much about it. Let’s take a look at the detailed introduction. The third party of wkwebview JavaScript bridge is quite good, but recently there has been a crash on […]

  • Regular expression analysis in jquery

    Time:2021-2-12

    quickExpr = /^(?:[^<]*(<[\w\W]+>)[^>]*$|#([\w\-]+)$)/ (?:… )The representation is a non capture type [^ <] indicates that it starts with “<” and contains 0 or more ‘<‘ brackets (< [[w / w] + >) indicates a capture type, starting with ‘< >’ and containing one or more characters in the middle $represents the end of the character […]

  • Parsing XML files with tinyxml in C + +

    Time:2020-9-2

    Tinyxml introduction Recently, a small load balancing project needs to parse the XML configuration file. Tinyxml is used, which makes it easy to use. A simple example of using tinyxml for XML parsing is given. Many complex applications can be completed based on this example. Tinyxml is an open source XML parsing library, which can […]

  • Spring MVC view parsing process code instance

    Time:2020-8-16

    This article mainly introduces the spring MVC view analysis process code example, the article through the example code introduction is very detailed, has the certain reference study value to everybody’s study or the work, needs the friend may refer to stay springmvc.xml The configuration file is configured to convert logical view to physical view <! […]

  • Java DOM parsing XML file process

    Time:2020-8-1

    This article mainly introduces the Java DOM parsing XML file process in detail, the article through the example code introduction is very detailed, to everyone’s study or work has certain reference learning value, need friends can refer to The code is as follows import java.io.IOException; import javax.xml.parsers.*; import org.w3c.dom.Document; import org.w3c.dom.Element; import org.w3c.dom.NamedNodeMap; import org.w3c.dom.Node; […]