message: [new feature] Search: add clearable prop
diff: @@ -15,6 +15,7 @@ export type SearchProps = {
  label?: string;
  leftIcon: string;
  rightIcon?: string;
  + clearable: boolean;
  background: string;
  showAction?: boolean;
  };
  @@ -92,12 +93,12 @@ function Search(
  <div class={bem('content', props.shape)}>
  {Label()}
  <Field
  - clearable
  type="search"
  border={false}
  value={props.value}
  leftIcon={props.leftIcon}
  rightIcon={props.rightIcon}
  + clearable={props.clearable}
  scopedSlots={{
  'left-icon': slots['left-icon'],
  'right-icon': slots['right-icon']
  @@ -119,6 +120,10 @@ Search.props = {
  type: String,
  default: 'square'
  },
  + clearable: {
  + type: Boolean,
  + default: true
  + },
  background: {
  type: String,
  default: '#fff'
  