随机一个十六进制颜色

阳光穿透心脏的1/2处 2023-06-05 08:12 9阅读 0赞

<!DOCTYPE html>
    <html lang="en">
    
    <head>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <meta http-equiv="X-UA-Compatible" content="ie=edge">
        <title>Document</title>
        <style>
            div {
                width: 300px;
                height: 200px;
                box-shadow: 0 0 5px lightblue;
                font-size: 24px;
            }
        </style>
    </head>
    
    <body>
        <div>this is div</div>
        <script>
            var div = document.querySelector('div');
            // console.log(div);
            // 封装函数
            function getColor() {
                //#号
                var str = '#';
                // 0-e的数组
                var arr = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'];
                //    循环6次
                for (var i = 0; i < 6; i++) {
                    //    随机这16位中的数字字母
                    var num = parseInt(Math.random() * 16);
                    //    把每一项添加给str
                    arr[num];
                    str += arr[num];
                }
                return str;
            }
            //    console.log(getColor());
            // 文档注册点击事件， 点击随机div颜色
            document.onclick = function () {
                div.style.backgroundColor = getColor();
                div.style.color = getColor();
            }
        </script>
    </body>
    
    </html>

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转载于:https://www.cnblogs.com/sandraryan/p/11610085.html

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