| checkedValue | The identifier of the currently selected item, corresponding to 'label' | String | -|
| disabled | Whether to disable the selection will be used for all check boxes under it | Boolean | `false`|
| max | Limit the maximum number of options | `undefined|number` | `undefined`|
## Checkbox Event
| Props | Description | Callback parameters|
|----- | ----- | ----- |
| change | Triggers | when the value changes (state, label), 'state' represents the current state, and 'label' represents the currently selected value|
| onChange | Triggers | when the value changes (state, label), 'state' represents the current state, and 'label' represents the currently selected value|
## CheckboxGroup Event
| Props | Description | Callback parameters|
|----- | ----- | ----- |
| change | Triggered when the value changes | label, 'label' returns an array representing the collection of the currently selected items|
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| onChange | Triggered when the value changes | label, 'label' returns an array representing the collection of the currently selected items|
## CheckboxGroup API
| 方法名 | 说明 | 参数 |
|----- | ----- | ----- |
| toggleAll | Select all / cancel | `f`,`true`,to select all,`false`,cancel the selection |