??? React ???? ?? ????? ??? ? /app? ?? ? /app/user? ???? ??? ??? ? ??? ???? ????.
???? ?? ????? ?? ?????. ??? ???? ???? ?? ??? ??????
Codesandbox: CodeSandBox ??
? ???
???? User.js組件嵌套，你需要在Main.js中添加Outlet
User.js
Main.js
Outlet
![[? ?????] Node.js ?? ??](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
