### 示例

**基本用法**

```js
<Row>
  <Col>
    <InputGroup>
      <InputGroupButton theme="secondary">帮助</InputGroupButton>
      <InputGroupInput placeholder="请输入内容" />
    </InputGroup>
  </Col>
  <Col>
    <InputGroup>
      <InputGroupInput placeholder="请输入内容" />
      <InputGroupButton theme="secondary">搜索</InputGroupButton>
    </InputGroup>
  </Col>
  <Col>
    <InputGroup>
      <InputGroupButton theme="secondary">-</InputGroupButton>
      <InputGroupInput placeholder="请输入内容" />
      <InputGroupButton theme="secondary">+</InputGroupButton>
    </InputGroup>
  </Col>
</Row>
```
