在mac安装cnpm时，输入npm install -g cnpm -registry=https://registry.npm.taobao.org

报错：

npm ERR! code EACCES

npm ERR! syscall mkdir

npm ERR! path /usr/local/lib/node_modules/cnpm

npm ERR! errno -13

npm ERR! Error: EACCES: permission denied, mkdir '/usr/local/lib/node_modules/cnpm'

npm ERR! [Error: EACCES: permission denied, mkdir '/usr/local/lib/node_modules/cnpm'] {

npm ERR! errno: -13,

npm ERR! code: 'EACCES',

npm ERR! syscall: 'mkdir',

npm ERR! path: '/usr/local/lib/node_modules/cnpm'

npm ERR! }

npm ERR!

npm ERR! The operation was rejected by your operating system.

npm ERR! It is likely you do not have the permissions to access this file as the current user

npm ERR!

npm ERR! If you believe this might be a permissions issue, please double-check the

npm ERR! permissions of the file and its containing directories, or try running

npm ERR! the command again as root/Administrator.

npm ERR! A complete log of this run can be found in:

npm ERR! /Users/raylin/.npm/_logs/2023-05-12T12_57_36_892Z-debug-0.log

解决办法：

mac需要安装权限，命令前加上sudo即可：

sudo npm install -g cnpm --registry=https://registry.npm.taobao.org

cnpm -v

出现cnpm版本号，即成功安装