解决Mac下安装nmp的淘宝镜像失败问题

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

npm ERR! Darwin 16.6.0npm ERR! argv "/usr/local/bin/node" "/usr/local/bin/npm" "install" "-g" "cnpm" "--registry=https://registry.npm.taobao.org" "--verbose"npm ERR! node v6.11.0npm ERR! npm v3.10.10npm ERR! path ../lib/node_modules/cnpm/bin/cnpmnpm ERR! code EACCESnpm ERR! errno -13npm ERR! syscall symlinknpm ERR! Error: EACCES: permission denied, symlink '../lib/node_modules/cnpm/bin/cnpm' -> '/usr/local/bin/cnpm'npm ERR!  at Error (native)npm ERR! { Error: EACCES: permission denied, symlink '../lib/node_modules/cnpm/bin/cnpm' -> '/usr/local/bin/cnpm'npm ERR!  at Error (native)npm ERR! errno: -13,npm ERR! code: 'EACCES',npm ERR! syscall: 'symlink',npm ERR! path: '../lib/node_modules/cnpm/bin/cnpm',npm ERR! dest: '/usr/local/bin/cnpm' }npm ERR! npm ERR! Please try running this command again as root/Administrator.npm verb exit [ -13, true ]npm ERR! Please include the following file with any support request:npm ERR!  /Users/xxx/npm-debug.log

Please try running this command again as root/Administrator 

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