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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">
- <title>Document</title>
- </head>
- <body>
- <a href="https://www.runoob.com/jsref/jsref-obj-math.html">Math对象</a>
- <script>
- var num = 1.167;
- // 向上取整 只要小数部分有值 就进行进位
- console.log(Math.ceil(num));
- // 向下取整 直接去掉小数部分
- console.log(Math.floor(num));
- </script>
- </body>
- </html>
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