javascript - node升级报错

Question

想升级node,结果显示无法执行脚本？
然后在想问一下，类似这种npm安装命令行报错怎么看错误的关键点？

Answer 1

should be npm install -g npm What does n mean? ?

Answer 2

In fact, there is no particularly good way to upgrade node on Windows. Neither nvm nor n can be used. Go to the official website to download the package