study_javascript/onclick.html at master · cqupthjb/study_javascript · GitHub

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<!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>鼠标事件处理</title>
    <style>
        .demo {
            width: 400px;
            height: 400px;
            background-color: red;
            color: white;
            line-height: 400px;
            text-align: center;
        }
    </style>
</head>
<body>
    <div onmouseover="mOver(this)" onmouseout="mOut(this)" class="demo">
        请把鼠标移上来
    </div>
    <script>
        function mOver(obj) {
            obj.innerHTML = '感谢您的配合!';
        }

        function mOut(obj) {
            obj.innerHTML = '请把鼠标移上来';
        }
    </script>
</body>
</html>