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HTML <input> step 属性

❮ HTML <input> 标签

示例

一个带有输入字段的 HTML 表单,该字段指定了合法的数字间隔

<form action="/action_page.php">
  <label for="points">分数:</label>
  <input type="number" id="points" name="points" step="3">
  <input type="submit">
</form>
自己试试 »

定义和用法

The step 属性指定了 <input> 元素中合法数字之间的间隔。

例如:如果 step="3",合法数字可能是 -3、0、3、6 等。

提示:The step 属性可以与 maxmin 属性一起使用来创建一个合法值的范围。

注意:The step 属性适用于以下输入类型:number、range、date、datetime-local、month、time 和 week。


浏览器支持

表中的数字指定了完全支持该属性的第一个浏览器版本。

属性
step 6.0 10.0 16.0 5.0 10.6

语法

<input step="number">

属性值

描述
number 指定输入字段中合法数字之间的间隔。默认值为 1
any  

❮ HTML <input> 标签
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