JS小功能(button选择颜色)简单实例

网络编程 发布日期:2024/10/10 浏览次数:1

正在浏览:JS小功能(button选择颜色)简单实例

效果:

JS小功能(button选择颜色)简单实例

JS小功能(button选择颜色)简单实例

代码:
复制代码 代码如下:
<head runat="server">
    <title></title>
    <style type="text/css">
        #red
        {
            width: 260px;
            height: 200px;
            background: #FF0000;
            display: none;
        }
        #green
        {
            width: 260px;
            height: 200px;
            background: #00FF00;
            display: none;
        }
        #yellow
        {
            width: 260px;
            height: 200px;
            background: #FFFF00;
            display: none;
        }
        #blue
        {
            width: 260px;
            height: 200px;
            background: #0000FF;
            display: none;
        }
    </style>
    <script type="text/javascript">
        window.onload = function () {
            var btn = document.getElementsByTagName('input');
            var div = document.getElementsByTagName('div');
            for (var i = 0; i < btn.length; i++) {
                btn[i].index = i;
                btn[i].onclick = function () {
                    for (var i = 0; i < btn.length; i++) {
                        btn[i].style.background = '';
                    }
                    switch (this.value) {
                        case '红色': this.style.background = '#FF0000';
                            break;
                        case '绿色': this.style.background = '#00FF00';
                            break;
                        case '黄色': this.style.background = '#FFFF00';
                            break;
                        case '蓝色': this.style.background = '#0000FF';
                            break;
                    }
                    for (var i = 0; i < btn.length; i++) {
                        div[i].style.display = '';
                    }
                    div[this.index].style.display = 'block';
                }
            }
        };
    </script>
</head>
<body>
    <input type="button" id="btn1" value="红色" style="background-color: #FF0000" />
    <input type="button" id="btn2" value="绿色" />
    <input type="button" id="btn3" value="黄色" />
    <input type="button" id="btn4" value="蓝色" />
    <div id="red" style="display: block;">
    </div>
    <div id="green">
    </div>
    <div id="yellow">
    </div>
    <div id="blue">
    </div>
</body>

高通与谷歌联手!首款骁龙PC优化Chrome浏览器发布
高通和谷歌日前宣布,推出首次面向搭载骁龙的Windows PC的优化版Chrome浏览器。
在对骁龙X Elite参考设计的初步测试中,全新的Chrome浏览器在Speedometer 2.1基准测试中实现了显著的性能提升。
预计在2024年年中之前,搭载骁龙X Elite计算平台的PC将面世。该浏览器的提前问世,有助于骁龙PC问世就获得满血表现。
谷歌高级副总裁Hiroshi Lockheimer表示,此次与高通的合作将有助于确保Chrome用户在当前ARM兼容的PC上获得最佳的浏览体验。