- [ ] I have searched the [issues](https://github.com/vueComponent/ant-design-vue/issues) of this repository and believe that this is not a duplicate. ### Version 4.2.5 ### Environment 4.2.5 ### Reproduction link [https://www.antdv.com/components/collapse-cn/#api](https://www.antdv.com/components/collapse-cn/#api) ### Steps to reproduce expandIconPosition 设置图标位置 start | end错误 ### What is expected? 正确的应该是left|right ### What is actually happening? 文档写的是start | end <!-- generated by issue-helper. DO NOT REMOVE -->