<script> <br /> window.onload = function() { <br /> var oBox = document.getElementByclassName("img"); <br /> oBox.onmouseover = function() { <br /> oBox.className = "hover"; <br /> }; <br /> oBox.onmouseout = function() { <br /> oBox.className = ""; <br /> }; <br /> }; <br /> </script>
可是任何效果都没有,不知道是哪里的问题。求请教
回复讨论(解决方案)
getElementsByClassName
getElementsByClassName
没有效果是为什么呢?
getElement sByclassName
不是什么浏览器都支持 getElementsByclassName 的
getElementsByclassName 得到的是一个数组
oBox.onmouseover ???
给数组指定鼠标事件?你这样写是不行的
<div id="WB_Blogger"> <div class="img" style="height:100px;width:100px;background-color:#00ff00;"> xxx </div> <div class="img" style="height:100px;width:100px;background-color:#c1c1c1;"> xxx </div></div><script type="text/javascript">window.onload = function() { var oBox = document.getElementsByClassName("img"); for (var i = 0, L = oBox.length; i < L; i++) { oBox[i].onmouseover = function() { this.className = "hover"; }; oBox[i].onmouseout = function() { this.className = ""; }; }};</script>
<div id="WB_Blogger"> <div class="img" style="height:100px;width:100px;background-color:#00ff00;"> xxx </div> <div class="img" style="height:100px;width:100px;background-color:#c1c1c1;"> xxx </div></div><script type="text/javascript">window.onload = function() { var oBox = document.getElementsByClassName("img"); for (var i = 0, L = oBox.length; i < L; i++) { oBox[i].onmouseover = function() { this.className = "hover"; }; oBox[i].onmouseout = function() { this.className = ""; }; }};</script>
找到原因了,单独拿出来写就可以,但是放入到discuz的模板里就不行。没有效果。怎么办呢
貌似discuz对页面的js处理有问题。
最好使用<script></script> 来引入。
把下面代码放入xxx.js
window.onload = function() { var oBox = document.getElementsByClassName("img"); for (var i = 0, L = oBox.length; i < L; i++) { oBox[i].onmouseover = function() { this.className = "hover"; }; oBox[i].onmouseout = function() { this.className = ""; }; }};

PHP logging is essential for monitoring and debugging web applications, as well as capturing critical events, errors, and runtime behavior. It provides valuable insights into system performance, helps identify issues, and supports faster troubleshoot

Laravel simplifies handling temporary session data using its intuitive flash methods. This is perfect for displaying brief messages, alerts, or notifications within your application. Data persists only for the subsequent request by default: $request-

The PHP Client URL (cURL) extension is a powerful tool for developers, enabling seamless interaction with remote servers and REST APIs. By leveraging libcurl, a well-respected multi-protocol file transfer library, PHP cURL facilitates efficient execution of various network protocols, including HTTP, HTTPS, and FTP. This extension offers granular control over HTTP requests, supports multiple concurrent operations, and provides built-in security features.

Laravel provides concise HTTP response simulation syntax, simplifying HTTP interaction testing. This approach significantly reduces code redundancy while making your test simulation more intuitive. The basic implementation provides a variety of response type shortcuts: use Illuminate\Support\Facades\Http; Http::fake([ 'google.com' => 'Hello World', 'github.com' => ['foo' => 'bar'], 'forge.laravel.com' =>

Do you want to provide real-time, instant solutions to your customers' most pressing problems? Live chat lets you have real-time conversations with customers and resolve their problems instantly. It allows you to provide faster service to your custom

Alipay PHP...

Article discusses late static binding (LSB) in PHP, introduced in PHP 5.3, allowing runtime resolution of static method calls for more flexible inheritance.Main issue: LSB vs. traditional polymorphism; LSB's practical applications and potential perfo

The article discusses adding custom functionality to frameworks, focusing on understanding architecture, identifying extension points, and best practices for integration and debugging.


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

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),

MinGW - Minimalist GNU for Windows
This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.

SublimeText3 English version
Recommended: Win version, supports code prompts!

DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software

VSCode Windows 64-bit Download
A free and powerful IDE editor launched by Microsoft