- [ ] I have searched the [issues](https://github.com/vueComponent/ant-design-vue/issues) of this repository and believe that this is not a duplicate. ### What problem does this feature solve? 节省代码,更快速开发 ### What does the proposed API look like? true-value 选中时的值,当使用类似 1 和 0 来判断是否选中时会很有用 String, Number, Boolean true false-value 没有选中时的值,当使用类似 1 和 0 来判断是否选中时会很有用 String, Number, Boolean false <!-- generated by issue-helper. DO NOT REMOVE -->