在安装完 yarn以后，yarn安装_阿巴资源站的博客-CSDN博客
然后开始安装webpack
看网上有人说npm install webpack-cli -g没成功，于是没试直接跳过坑
sudo npm install webpack -g --unsafe-perm=true --allow-root然后提示：
webpack -v
One CLI for webpack must be installed. These are recommended choices,
delivered as separate packages:
- webpack-cli (https://github.com/webpack/webpack-cli)
The original webpack full-featured CLI.
We will use "npm" to install the CLI via "npm install -D".
Do you want to install 'webpack-cli' (yes/no):
看样子是让安装 webpack-cli，一入坑深啊继续吧
npm install webpack-cli -D提示在开发环境中局部安装，会一直提示安装。继续跳过这个坑
全局安装：
npm install -g webpack-cli然后这次就可以了，正好查下：webpack -v，OK
最后这个不知道干嘛，反正是过一下神清气爽：
sudo npm install webpack-cli -g --unsafe-perm=true --allow-root