electron_learn_demo
/
demo5.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <h2> JSPang.com  断网提醒测试 </h2>
</body>
<script>
    window.addEventListener('online',function(){
        alert('官人，我来了，我们继续哦！')
    })

    window.addEventListener('offline',function(){
        alert('小女子先行离开一会，请稍等！')
    })
</script>
</html>