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The chart Library of echarts is used in this project. Echarts provides conventional line chart, column chart, scatter chart, pie chart and k-line chart, box chart for statistics, map, thermal chart and line chart for geographic data visualization, relationship chart, treemap and sunrise chart for relational data visualization, parallel coordina ...

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1.1 characteristics of the box Box model is an important attribute for web page layout. A page is composed of multiple boxes, and the content of each box is different. Here is a box model: elementdescribeOuter marginExtra distance between box and other elementsInner margin (padding)Also known as fill distance, it is the distance between ...

one ο nc ο ntextmenu="window.event.returnValue=false" will completely block the right mouse button <table border ο nc ο Ntextmenu = return (false) > < td > no < / Table > can be used for table 2. < body onselectstart = "return false" > unselect and prevent copying ...

ContextType(MIME) ContextType is a field in which MIME (Multipurpose Internet Mail Extensions) represents the type of information transmitted over HTTP. Different contexttypes represent different types. There are some commonly used contexttypes. The syntax of MIME type is type/subtype, which is in IETF RFC 6838 The syntax is composed of t ...

1 Introduction 1 css is the standard introduced by w3c 2 versions css1, css2, css3 3. What is CSS The web page is divided into three parts: structure(HTML) performance(CSS) behavior(JavaScript) CSS - Cascading style sheets - The web page is actually a multi-layer structure CSS You can style each l ...

        There are three types of communication between components: parent to child, child to parent, and brother components Six communication modes between vue components         1.props/$emit                 props is passed from parent to child, $emit is passed from child to pare ...

Inspiration for this article: https://blog.csdn.net/qq_43613793/article/details/104268536 Thank the blogger for providing learning articles! brief introduction Echarts is a data visualization open source by Baidu. With good interactivity and exquisite chart design, echarts has been recognized by many developers. Python is an expressive lang ...

DOM events  * [DOM event]  *  * 1. What is an event?  *   An event is an event or a behavior (for an element, many of its events are innate). As long as we operate the element, these behaviors will be triggered  *   "Events are the inherent behaviors of elements. When we operate elements, we wi ...

After the company has done many large screen projects, there are many solutions for screen adaptation, such as media query, scale scaling, Rem, vw, etc. to be honest, but each solution has its own specific use scenarios. In the face of different projects, our first consideration is not which solution is the best, but the most appropriate. Af ...