npm install 安装很慢怎么办？

安装源管理器nrm

sudo npm install -g nrm
#macOS

npm install -g nrm
#Windows以管理员身份运行

安装完毕之后通过以下命令可以切换你想要的源

nrm ls
#查看源列表

* npm ---------- https://registry.npmjs.org/
  yarn --------- https://registry.yarnpkg.com/
  tencent ------ https://mirrors.cloud.tencent.com/npm/
  cnpm --------- https://r.cnpmjs.org/
  taobao ------- https://registry.npmmirror.com/
  npmMirror ---- https://skimdb.npmjs.com/registry/
  huawei ------- https://repo.huaweicloud.com/repository/npm/

nrm use tencent
#切换腾讯源

SUCCESS  The registry has been changed to 'tencent'.
#源切换成功