15_取整.html 469 B

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  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4. <meta charset="UTF-8">
  5. <meta name="viewport" content="width=device-width, initial-scale=1.0">
  6. <title>Document</title>
  7. </head>
  8. <body>
  9. <script>
  10. // var a = 3.66666;
  11. // Math.floor 向下取整 去掉所有小数部分仅保留整数
  12. // a = Math.floor(a);
  13. // console.log(a);
  14. var num = 1234;
  15. var a = Math.floor(1234/1000);
  16. </script>
  17. </body>
  18. </html>