centos 安装nodejs

1 .先安装nvm

```bash

wget -qO- https://raw.githubusercontent.com/nvm-sh/nvm/v0.38.0/install.sh | bash
```

安装成功后有上面图片的提示，

红框框就是环境变量的设置方法

export NVM_DIR="$HOME/.nvm"
[ -s "$NVM_DIR/nvm.sh" ] && . "$NVM_DIR/nvm.sh"  # This loads nvm
[ -s "$NVM_DIR/bash_completion" ] && . "$NVM_DIR/bash_completion"  # This loads nvm bash_completion

=> Compressing and cleaning up git repository

=> Appending nvm source string to /home/coder/.bashrc
=> Appending bash_completion source string to /home/coder/.bashrc
=> Close and reopen your terminal to start using nvm or run the following to use it now:

任意使用哪一种都行

执行你选择的命令后

nvm install 14.16.0

nodejs就按钮好了，其中14.16.0 是node版本号