'.' 不是内部或外部命令，也不是可运行的程序 或批处理文件。

```
PS F:\test> npm run watch

> test@0.1.0 watch F:\test
> ./node_modules/webpack/bin/webpack.js --mode=development --watch --config config/webpack.config.js

'.' 不是内部或外部命令，也不是可运行的程序
或批处理文件。
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! test@0.1.0 watch: `./node_modules/webpack/bin/webpack.js --mode=development --watch --config config/webpack.config.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the test@0.1.0 watch 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\Administrator\AppData\Roaming\npm-cache\_logs\2021-12-12T05_37_32_606Z-debug.log
PS F:\test>
```