- A+
所属分类：Web前端
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，本质就是js的随机数运用。
代码如下：
<!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>
效果如下：
