npm

where <command> is one of:    access, adduser, bin, bugs, c, cache, completion, config,    ddp, dedupe, deprecate, dist-tag, docs, doctor, edit,    explore, get, help, help-search, i, init, install,    install-test, it, link, list, ln, login, logout, ls,    outdated, owner, pack, ping, prefix, prune, publish, rb,    rebuild, repo, restart, root, run, run-script, s, se,    search, set, shrinkwrap, star, stars, start, stop, t, team,    test, tst, un, uninstall, unpublish, unstar, up, update, v,    version, view, whoami

淘宝 npm 地址： http://npm.taobao.org/

如何使用
有很多方法来配置npm的registry地址，下面根据不同情境列出几种比较常用的方法。以淘宝npm镜像举例：

1.临时使用

npm --registry https://registry.npm.taobao.org install express

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2.持久使用

npm config set registry https://registry.npm.taobao.org

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配置后可通过下面方式来验证是否成功
npm config get registry
或
npm info express
3.通过cnpm使用

npm install -g cnpm –registry=https://registry.npm.taobao.org
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使用
cnpm install express