找了一圈没哪能彻底理解react中「eject」的概念，vue-cli中也有提到，大神指点一下？

是create-react-app里的概念。eject是将webpack具体配置反解出来。

https://github.com/facebook/create-react-app

No Lock-In: You can “eject” to a custom setup at any time. Run a single command, and all the configuration and build dependencies will be moved directly into your project, so you can pick up right where you left off.