2016-03-31 14:17:09 +08:00
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---
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category: Components
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2016-09-21 11:28:38 +08:00
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subtitle: 数字输入框
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2018-11-04 16:20:35 +08:00
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type: 数据录入
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2016-09-21 11:28:38 +08:00
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title: InputNumber
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2020-06-05 13:50:09 +08:00
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cover: https://gw.alipayobjects.com/zos/alicdn/XOS8qZ0kU/InputNumber.svg
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2016-03-31 14:17:09 +08:00
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---
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2015-07-01 14:48:47 +08:00
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通过鼠标或键盘，输入范围内的数值。
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## 何时使用
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2015-07-20 19:25:34 +08:00
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当需要获取标准数值时。
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2015-07-01 14:48:47 +08:00
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## API
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属性如下
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2020-10-10 17:49:50 +08:00
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| 成员 | 说明 | 类型 | 默认值 | 版本 |
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| --- | --- | --- | --- | --- |
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| autoFocus | 自动获取焦点 | boolean | false | - |
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| defaultValue | 初始值 | number | - | - |
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| disabled | 禁用 | boolean | false | - |
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| readOnly | 只读 | boolean | false | - |
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| formatter | 指定输入框展示值的格式 | function(value: number \| string): string | - | - |
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| max | 最大值 | number | [Number.MAX_SAFE_INTEGER](https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Global_Objects/Number/MAX_SAFE_INTEGER) | - |
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| min | 最小值 | number | [Number.MIN_SAFE_INTEGER](https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Global_Objects/Number/MIN_SAFE_INTEGER) | - |
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| parser | 指定从 `formatter` 里转换回数字的方式，和 `formatter` 搭配使用 | function(string): number | - | - |
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| precision | 数值精度 | number | - | - |
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| decimalSeparator | 小数点 | string | - | - |
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| size | 输入框大小 | `large` \| `middle` \| `small` | - | - |
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| step | 每次改变步数，可以为小数 | number \| string | 1 | - |
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| value | 当前值 | number | - | - |
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| onChange | 变化回调 | function(value: number \| string) | - | - |
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| onPressEnter | 按下回车的回调 | function(e) | - | - |
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| onStep | 点击上下箭头的回调 | `(value: number, info: { offset: number, type: 'up' | 'down' }) => void` | - | 4.7.0 |
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2017-12-01 19:28:41 +08:00
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## 方法
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2019-11-22 14:37:39 +08:00
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| 名称 | 描述 |
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| ------- | -------- |
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| blur() | 移除焦点 |
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| focus() | 获取焦点 |
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