HTML5/CSS3 Classic case - Drag and drop upload of images without plug-in (1): Uploading is basically a common occurrence in projects, generally using: 1. form submission 2. flash3, html5form submission will refresh the page, and it is difficult to be asynchronous Upload; flash may be used more often, because it can take into account almost all browsers. I have always used jquery's uploadify as the upload tool in the project. Uploadify is also based on HTML5 and seems to be charged. You can go to the official website to see Look; of course, now html5 provides API and powerful APIs such as File, FileReader, XMLHttpRequest, etc., which makes it possible for us to drag and drop to upload. Rendering 1: Rendering 2: Because the local upload is too fast, I recorded an 80M gif. I can finally see the detailed effect of the upload. Is it still very good? It is recommended that CSDN’s blog editor also supports drag and drop. Uploading saves me from searching for files. Since there are a lot of codes: This article mainly talks about HTML and CSS: HTML code: /p>
1. HTML5/CSS3 Classic case - Drag and drop upload of images without plug-in (1)
Introduction: form submission will refresh the page, making it difficult to upload asynchronously; flash may be used There are more, because it can take into account almost all browsers. I have always used jQuery's uploadify as the upload tool in the project. Uploadify is also based on Html5 and seems to be paid. You can go to the official website to take a look; of course, now html5 Provides APIs and powerful APIs such as File, FileReader, XMLHttpRequest, etc., making it possible for us to drag and drop uploads.
2. PHP Implementation of Multiple Image Uploading (Combined with Uploadify Plug-in) Idea Analysis
Introduction: This article describes the method of uploading multiple images in PHP. Share it with everyone for your reference, the details are as follows: 1. Existing pictures can be deleted 2. There is a new button 3. Click the new button to jump out of the frame 4. Asynchronous uploading of pictures and timely effects in the frame 5. After the upload is successful, call the callback function 6. The picture in the pop-up box can be deleted 7. Click Save in the frame pop-up box and display the picture to the page through js
3. asp .net uploadify implements multiple attachment upload functions
#Introduction: This article mainly introduces ASP in detail .net uploadify implements the function of uploading multiple attachments, which has certain reference value. Interested friends can refer to
4. javascript - About uploadify to upload all attachments at the same time Picture
Introduction: 1. How does uploadify bind the button button? Is it in $(document).ready(function(){ {code...} }) ;This doesn’t seem to work. 2. In addition to pictures, when I upload, there are many other values that need to be entered. I know that I can use the settings method to bind these values, but when I...
5. laravel uses uploadify to implement avatar upload problem
#Introduction: The status on the blade page shows that it has been uploaded successfully. The previous Network diagram shows blade successfully uploading images. Here is another Network diagram showing uploaded images. However, in the controller, the upload value with a null value was obtained. According to the data uploaded on the page uploaded by blade, it was found that the value of Filedata was not uploaded...
6. html - When using the uploadfiy plug-in, why is the debugging information written in the uploadify.php file not output?
Introduction: When using the uploadfiy plug-in, I hope to write some logic in uploadify.php Judgment, but when debugging, there is no output, echo/var_dump, etc. do not work
7. javascript - Failed to set session session?
Introduction: I used an image upload plug-in: uploadify. Due to the 302 error when uploading under IE and Firefox, I passed the current session name session_name() on the front end to the backend to re-establish the session, but I did the following , the background can receive the parameters of session_name(), but when the session is re-established,...
Introduction:: This article mainly introduces Yii Uploadify batch upload. Students who are interested in PHP tutorials can refer to it.
9. Summary of files uploaded by ThinkPHP
##Introduction::This article mainly introduces the summary of files uploaded by ThinkPHP. Students who are interested in PHP tutorials can refer to it.
10. html5+php How to upload pictures to your mobile phone
Introduction: How to upload pictures to your mobile phone with html5+php? Are there any similar plugins? You can use ajax to request the returned data and display it. The computer version has been implemented, using uploadify. I don’t know what plug-ins can be used for the mobile version? I hope all the experts will answer
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H5 and HTML5 are different concepts: HTML5 is a version of HTML, containing new elements and APIs; H5 is a mobile application development framework based on HTML5. HTML5 parses and renders code through the browser, while H5 applications need to run containers and interact with native code through JavaScript.

Key elements of HTML5 include,,,,,, etc., which are used to build modern web pages. 1. Define the head content, 2. Used to navigate the link, 3. Represent the content of independent articles, 4. Organize the page content, 5. Display the sidebar content, 6. Define the footer, these elements enhance the structure and functionality of the web page.

There is no difference between HTML5 and H5, which is the abbreviation of HTML5. 1.HTML5 is the fifth version of HTML, which enhances the multimedia and interactive functions of web pages. 2.H5 is often used to refer to HTML5-based mobile web pages or applications, and is suitable for various mobile devices.

HTML5 is the latest version of the Hypertext Markup Language, standardized by W3C. HTML5 introduces new semantic tags, multimedia support and form enhancements, improving web structure, user experience and SEO effects. HTML5 introduces new semantic tags, such as, ,, etc., to make the web page structure clearer and the SEO effect better. HTML5 supports multimedia elements and no third-party plug-ins are required, improving user experience and loading speed. HTML5 enhances form functions and introduces new input types such as, etc., which improves user experience and form verification efficiency.

How to write clean and efficient HTML5 code? The answer is to avoid common mistakes by semanticizing tags, structured code, performance optimization and avoiding common mistakes. 1. Use semantic tags such as, etc. to improve code readability and SEO effect. 2. Keep the code structured and readable, using appropriate indentation and comments. 3. Optimize performance by reducing unnecessary tags, using CDN and compressing code. 4. Avoid common mistakes, such as the tag not closed, and ensure the validity of the code.

H5 improves web user experience with multimedia support, offline storage and performance optimization. 1) Multimedia support: H5 and elements simplify development and improve user experience. 2) Offline storage: WebStorage and IndexedDB allow offline use to improve the experience. 3) Performance optimization: WebWorkers and elements optimize performance to reduce bandwidth consumption.

HTML5 code consists of tags, elements and attributes: 1. The tag defines the content type and is surrounded by angle brackets, such as. 2. Elements are composed of start tags, contents and end tags, such as contents. 3. Attributes define key-value pairs in the start tag, enhance functions, such as. These are the basic units for building web structure.

HTML5 is a key technology for building modern web pages, providing many new elements and features. 1. HTML5 introduces semantic elements such as, , etc., which enhances web page structure and SEO. 2. Support multimedia elements and embed media without plug-ins. 3. Forms enhance new input types and verification properties, simplifying the verification process. 4. Offer offline and local storage functions to improve web page performance and user experience.


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