### What problem does this feature solve InputNumber组件目前还有以下功能未完成: - [x] 基本功能 - [x] 禁用状态 - [x] 允许空值 - [x] 设置最大长度 - [x] 正则限制 Finished by @vaebe on #1207 - [ ] 限制小数 参考: https://devui.design/components/zh-cn/input-number/demo ### What does the proposed API look like 参考: https://devui.design/components/zh-cn/input-number/demo