::进入node文件夹

mkdir npm_old
move npm npm_old\npm
move npm.cmd npm_old\npm.cmd
move npx npm_old\npx
move npx.cmd npm_old\npx.cmd

ren node_modules\npm npm_old
node node_modules\npm_old\bin\npm-cli.js i -g npm@latest

::全部成功后再删除两个npm_old文件夹: