• Methods of decompressing or mounting img files on Linux system


    IMG file compression and decompressionIn 2.6 kernel initrd.img CPIO compression is no longer the ext2 format used by 2.4 kernel, and mount – O loop cannot be used. You need to use gunzip to decompress, and then use CPIO to unpack Copy code The code is as follows: cp /boot/initrd-***.img initrd.img.gzgunzip initrd.img.gzmkdir initrdmv initrd.img initrdcd […]

  • The SRC is “[object module]” after webpack packages img in HTML


    Introducing img image into HTML <!DOCTYPE html> <html lang=”en”> <head> <meta charset=”UTF-8″> <meta name=”viewport” content=”width=device-width, initial-scale=1.0″> <meta http-equiv=”X-UA-Compatible” content=”ie=edge”> <title>Document1</title> </head> <body> <div > <img src=”./logo.jpg” alt=””> </div> </html> Package with URL loader / file loader and HTML loader { test: /\.(png|jpg|gif|jpeg)$/, use: [{ loader: ‘url-loader’, loader: ‘file-loader’, options: { name: ‘[name].[ext]’, limit: 10240 } […]

  • Examples of using usermap in img


    Usemap is an attribute of the < img > tag and is used to indicate the image map name used. The map of ා map is an image map defined with the < Map > tag. Its name attribute is map, which is defined as follows: Copy code The code is as follows: <map name=”Map”> […]

  • To solve the problem that HTML image img with hyperlinks produces ugly blue border


    HTML img with hyperlinks produces an ugly blue border As follows:terms of settlement:Add style to CSS style sheet: Copy code The code is as follows: img {border:0;margin:0;padding:0;}

  • The principle of the distance between img Tags


    Basic analysis of img tag in HTML5: four elements of img Tag Image: (1) SRC: image path (2)width: (3)height: (4)alt: The effect of alert is as follows When there is an error in the image, the function in ALT is used to represent the error content, which is convenient for the search engine to grab […]

  • Introduction to the use of alt attribute and title attribute of HTML img tag


    When browser vendors distort the standards and do something on their own that doesn’t follow the rules, they can cause problems, or at least confusion. One example is the way that some browsers handle the alt attribute (commonly called the ALT tag by mistake), such as the IE browser with a large number of users. […]

  • Extracting SRC of img by regular expression


    String to match: < img SRC = image / AD1. GIF width = “128” height = “36” / > < img SRC =’image / ad2. GIF ‘width = “128” height = “36” / >Regular expression: < img [\ S] + SRC [\ S] * = [\ S] * ([‘”] (? < SRC > [^’”] * […]

  • The method of implementing SRC update request in img with JSP


    In this paper, JSP is combined with JS to realize SRC update request in img. Share with you for your reference. The details are as follows: 1. JavaScript (updated function) <script type=”text/javascript”> function changeImage(){ var img = document.getElementById(“imgVcode”); if(img.name == 1){ img.name = 2; img.src = “shop.do?method=registerImage2”; }else if(img.name == 2){ img.name = 1; img.src […]

  • A method of adaptive height with width of div or img picture


    This method is mainly used to make the website adaptive, at the same time, it can support the content height and avoid the page scrolling caused by image loading. 1、 You can use js to determine the width of the image to get specific values, and then use js to set the height of the […]

  • How to make img adapt to the size of div container automatically by HTML


    In order to make the IMG adaptive size, I made an example of horizontal adaptation as follows: IMG style (stretch horizontally, size vertically automatically)   Div style (element centered) IMG style (horizontal stretch, vertical auto match size) width:100%; height:auto; (stretch vertically, auto fit horizontally) width:auto; height:100%; Div style (element centered) display:flex; align-items:center; justify-content:center; It’s very […]

  • In HTML’s img src= “, JS function or JS variable is used to dynamically specify the image path.


    Many network resources have been found for this problem. Here are several methods in the experiment Copy code The code is as follows: < img ALT = “seaside style” SRC = “javascript: nextpic()” > so that you can call JS’s function nextpic(). Excerpt for your convenience

  • Details of promise loading image usage


    Now I’m not embarrassed to say that I’m the front end if I don’t use promise. Why is promise so hot? In a word, the most important thing to solve the problem of callback nesting and execution order is to solve the problem of order. But before we start writing, let’s see how promise can […]