JavaScript实现鼠标移入随机变换颜色

时间:2022-09-11 20:38:14

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。

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<!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

JavaScript实现鼠标移入随机变换颜色

总结

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原文链接:https://blog.csdn.net/weixin_47541751/article/details/109775233