编程字典

源代码

<!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>编程字典</title>
  <style>
    div {
        background: yellow;
        border: 1px solid black;
        padding: 10px;
    }
  </style>
</head>
<body>

<div contextmenu="mymenu">
    <p>在这个框里右键单击，可以显示一个上下文菜单。

</div>

<p>这个实例只能在Firefox中生效!</p>

</body>
</html>

运行结果