<a name="toast"></a>
## toast(content, options)
toast 一般用于操作成功时的提示场景
**Kind**: global function
| Param | Type | Default | Description |
| --- | --- | --- | --- |
| content | <code>string</code> | | toast的文字 |
| options | <code>Object</code> | <code>function</code> | | 配置项或回调 |
| [options.duration] | <code>number</code> | <code>3000</code> | 多少毫秒后关闭toast |
| [options.callback] | <code>function</code> | | 关闭后的回调 |
| [options.className] | <code>string</code> | | 自定义类名 |
**Example**
```js
weui.toast('操作成功', 3000);
weui.toast('操作成功', {
duration: 3000,
className: 'custom-classname',
callback: function(){ console.log('close') }
});
```
