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npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! react-demo@0.1.0 eject: `react-scripts eject`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the react-demo@0.1.0 eject script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\15292\AppData\Roaming\npm-cache\_logs\2018-12-16T08_21_31_949Z-debug.log

执行npm run eject报错如上，应该是没装好git，或者装了但是没提交到仓库，解决方案如下：

先执行

git add .

后执行

git commit -m "init"

这都成功以后再npm run eject就没错了

后端啥都要会hhhh