Posted in Javascript onNovember 24, 2020
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
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JavaScript实现鼠标移入随机变换颜色
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