NodeJs安装并且配置环境变量

1.安装 https://nodejs.org/en/

 

 

2.一直点next就行，只是要自定义一下安装位置

3.在目录下新建两个文件夹

 

 

npm config set prefix "D:\Nodejs\node_global"
npm config set cache "D:\Nodejs\node_cache"

但此时会报错

npm WARN config global `--global`, `--local` are deprecated.  Use `--location=global` instead.
npm WARN logfile could not create logs-dir: Error: EPERM: operation not permitted, mkdir 'D:\NodeJs\node_cache\_logs'
npm WARN logfile could not be created: Error: ENOENT: no such file or directory, open 'D:\NodeJs\node_cache\_logs\2022-07-18T17_38_27_258Z-debug-0.log'
npm WARN logfile could not create logs-dir: Error: EPERM: operation not permitted, mkdir 'D:\NodeJs\node_cache\_logs'
npm WARN logfile could not be created: Error: ENOENT: no such file or directory, open 'D:\NodeJs\node_cache\_logs\2022-07-18T17_38_27_719Z-debug-0.log'

类似这样的错，解决步骤:

 

 

 

4.配置环境变量

4.1在系统变量下新建

 

 

4.2此时会在用户变量下的[PATH]里出现一个

 

 这个，没有4.1步不会出现，现在把它替换成

 

 刚才新建的node_global路径就行了