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- <!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>
- </head>
- <body>
- <script>
- // window.prompt('请输入')
- //需求： 输入年龄 计算活了多少秒！！！ 通过alert弹出 当前总过活了xxxx秒
- var a = window.prompt('请输入年龄', 18)
- console.log(a)
- var b = a * 365 * 24 * 60 * 60
- alert('当前总过活了'+ b + '秒')
- </script>
- </body>
- </html>
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