Select 示例

```js
// const Select = require('./index').Select;
const Option = Select.Option;

<Select defaultValue="lucy" allowClear={true} style={{ width: 300 }} onChange={val => console.log(`selected ${val}`)}>
  <Option value="jack">Jack</Option>
  <Option value="lucy">Lucy</Option>
  <Option value="disabled" disabled>
    Disabled
  </Option>
  <Option value="Yiminghe">yiminghe</Option>
</Select>;
```

Tag

```js
<Select style={{ width: 500 }} mode="tags" dropdownVisible={false} />
```

Sortable

```js
<Select
  style={{ width: 500 }}
  mode="tags"
  placeholder="Please select"
  defaultValue={['a10', 'a12', 'a13', 'a14']}
  isSortable
  onChange={val => console.log(val)}
>
  <Option value="a10">a10</Option>
  <Option value="a11">a11</Option>
  <Option value="a12">a12</Option>
  <Option value="a13">a13</Option>
  <Option value="a14">a14</Option>
  <Option value="a15">a15</Option>
  <Option value="a16">a16</Option>
  <Option value="a17">a17</Option>
</Select>
```
