a-cascader 只如何存最后一级Id和回显

[Hair-Serei]

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

What problem does this feature solve?

在选择省市区下拉框时，只存最后一级（区）的数据，并根据这个数据回显

What does the proposed API look like?

and-design-vue V2.10.1

[github-actions]

This issue is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 7 days

[leizhiyou]

有解决方案么

[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.