please update a feature is multiple selection of cascader components just like element-ui

[rawKylin]

• I have searched the issues of this repository and believe that this is not a duplicate.

What problem does this feature solve?

cascader can multiple-selection. demo address：https://element.eleme.cn/#/en-US/component/cascader#multiple-selection

What does the proposed API look like?

Set props.multiple = true to use multiple selection.

[tangjinzhou]

you can use TreeSelect.

[tangjinzhou]

ref #886

[github-actions]

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.