大家好！
今天分享一个在 JavaScript中，实现一个鼠标移入可以随机变换颜色。
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<style>
/* 这里定义一下div（块元素）已下span 标签的宽.高.边框线以及边框线的颜色*/
span{
display: block;
width: 80px;
height: 80px;
border: 1px solid #000000;
float: left;
}
</style>
</head>
<body>
<div>
<span></span><span></span><span></span><span></span><span></span><span></span>
<span></span><span></span><span></span><span></span><span></span><span></span>
<span></span><span></span><span></span><span></span><span></span><span></span>
<span></span><span></span><span></span><span></span><span></span><span></span>
<span></span><span></span><span></span><span></span><span></span><span></span>
<span></span><span></span><span></span><span></span><span></span><span></span>
<span></span><span></span><span></span><span></span><span></span><span></span>
<span></span><span></span><span></span><span></span><span></span><span></span>
<span></span><span></span><span></span><span></span><span></span><span></span>
<span></span><span></span><span></span><span></span><span></span><span></span>
<span></span><span></span><span></span><span></span><span></span><span></span>
<span></span><span></span><span></span><span></span><span></span><span></span>
<span></span><span></span><span></span><span></span><span></span><span></span>
<span></span><span></span><span></span><span></span><span></span><span></span>
<span></span><span></span><span></span><span></span><span></span><span></span>
<span></span><span></span><span></span><span></span><span></span><span></span>
<span></span><span></span><span></span><span></span><span></span><span></span>
<span></span><span></span><span></span><span></span><span></span><span></span>
<span></span><span></span><span></span><span></span><span></span><span></span>
<span></span><span></span><span></span><span></span><span></span><span></span>
</div>
<script type="text/javascript">
var a=document.getElementsByTagName("span");
/* 获取一下span标签 */
for(var i=0;i<=a.length;i++){
a[i].onmouseover=function(){
/* 循环出每一个方块，加入鼠标移入 */
this.style.backgroundColor="#"+Math.floor(Math.random()*16777215).toString(16);
/* 颜色随机颜色 */
}
}
</script>
</body>
</html>
如下是代码运行后在这里插入图片描述
总结
免责声明：本站文章均来自网站采集或用户投稿，网站不提供任何软件下载或自行开发的软件！
如有用户或公司发现本站内容信息存在侵权行为，请邮件告知！ 858582#qq.com
桃源资源网 Design By www.nqtax.com
暂无“JavaScript实现鼠标移入随机变换颜色”评论...
RTX 5090要首发 性能要翻倍！三星展示GDDR7显存
三星在GTC上展示了专为下一代游戏GPU设计的GDDR7内存。
首次推出的GDDR7内存模块密度为16GB，每个模块容量为2GB。其速度预设为32 Gbps（PAM3），但也可以降至28 Gbps，以提高产量和初始阶段的整体性能和成本效益。
据三星表示，GDDR7内存的能效将提高20%，同时工作电压仅为1.1V，低于标准的1.2V。通过采用更新的封装材料和优化的电路设计，使得在高速运行时的发热量降低，GDDR7的热阻比GDDR6降低了70%。