<script> <br /> function cc() <br /> { <br /> var cf=window.screen.width; <br /> alert(cf ) <br /> <br /> if(cf<=1920) <br /> { <br /> cf=-(1920-cf)/2 <br /> } <br /> else if(cf>1920) <br /> { <br /> cf=(cf-1920)/2 <br /> } <br /> document.getElementById("m1").style.marginLeft=cf; <br /> alert(cf) <br /> } <br /> </ script> <br /> <br /> <br /> <body onLoad="cc()"> <br /> <div style=" width:100%; overflow:hidden;" id=" a"> <br /> <div style="width:1920px; height:500px;" id="m1"><img src="/static/imghwm/default1.png" data-src="images/bar3.png" class="lazy" style="max-width:90%" height="500 " text-align:center alt="document.getElementById('') assignment problem_html/css_WEB-ITnose" > <br /> <br /> <br /> </script>
Difficulty in updating caching of official account web pages: How to avoid the old cache affecting the user experience after version update?Mar 04, 2025 pm 12:32 PMThe official account web page update cache, this thing is simple and simple, and it is complicated enough to drink a pot of it. You worked hard to update the official account article, but the user still opened the old version. Who can bear the taste? In this article, let’s take a look at the twists and turns behind this and how to solve this problem gracefully. After reading it, you can easily deal with various caching problems, allowing your users to always experience the freshest content. Let’s talk about the basics first. To put it bluntly, in order to improve access speed, the browser or server stores some static resources (such as pictures, CSS, JS) or page content. Next time you access it, you can directly retrieve it from the cache without having to download it again, and it is naturally fast. But this thing is also a double-edged sword. The new version is online,
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mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),
