npm yarn 安装卸载指定版本

npm uninstall ng-zorro-antd

npm install ng-zorro-antd@0.6.6 --save


npm install xxx --save-dev (or 简写 npm i -D)  //将xxx安装到开发环境（devDependencies）的依赖中去

yarn add [package] - -dev = 》npm install [package]- -save-dev