下文笔者讲述npm镜像替换为taobao的方法分享，如下所示:
例:
1. 获取原本的镜像地址
npm get registry
2. 设成淘宝的
npm config set registry http://registry.npm.taobao.org/
yarn config set registry http://registry.npm.taobao.org/
3.还原npm设置为最原始
npm config set registry https://registry.npmjs.org/
