更换npm源
# npm查看源地址
npm config get registry
# 更换npm源为淘宝镜像
npm config set registry https://registry.npmmirror.com
# 恢复为默认源
npm config set registry https://registry.npmjs.org
# npm查看源地址
npm config get registry
# 更换npm源为淘宝镜像
npm config set registry https://registry.npmmirror.com
# 恢复为默认源
npm config set registry https://registry.npmjs.org