jd-opensource / jd-opensource/taro-ui

input-number无法输入0.

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Description

**复现步骤**

1 输入0.
2 组件处理为0
3 无法继续输入0.1

```js
// 这里可以贴代码
components/input-number/index.tsx line: 101 源代码如下
if (resultValue && !Number(resultValue)) {
resultValue = parseFloat(String(resultValue)) || min
this.handleError({
type: 'OVER',
errorValue: resultValue!
})
}
```

**期望行为**
可以输入小数,0.xx,源代码判断条件需要修改

**报错信息**
无报错

**系统信息**

👽 Taro v2.2.7

Taro CLI 2.2.7 environment info:
System:
OS: Windows 10
Binaries:
Node: 10.15.1 - C:\Program Files\nodejs\node.EXE
Yarn: 1.16.0 - C:\Users\bg344717\AppData\Roaming\npm\yarn.CMD
npm: 6.4.1 - C:\Program Files\nodejs\npm.CMD

**补充信息**

Contributor guide

Open the contributing guide

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