js 鼠标移上去修改style属性-红穆笔记

演示效果

鼠标移上去，颜色显示为红色，鼠标移开，颜色显示为黑色。
获取id对象：document.getElementById()
鼠标移上去：onmouseover
鼠标移开：onmouseout

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        #box1{
            height: 30px;
            text-align: center;
            font: 30px/30px "楷体";
        }
    </style>
</head>
<body>
    <div id="box1">
        锣鼓一响，黄金万<span id="span">两</span>
    </div>

    <script>
        document.getElementById("box1").onmouseover = function(){
            document.getElementById("span").style.color = "red";
        };
        document.getElementById("box1").onmouseout = function(){
            document.getElementById("span").style.color = "#000";
        };
    </script>
</body>
</html>

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js 鼠标移上去修改style属性

演示效果

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