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---
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category: Components
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subtitle: 数字输入框
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type: Data Entry
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title: InputNumber
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---
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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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当需要获取标准数值时。
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## API
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属性如下
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| 成员 | 说明 | 类型 | 默认值 |
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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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| 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 | Infinity |
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| min | 最小值 | number | -Infinity |
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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 | string | 无 |
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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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## 方法
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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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