**1.下载** - https://nodejs.org/en ![image](https://hackmd.io/_uploads/BJ_4I9-wp.png) **1.1 默认路径即可** ![image](https://hackmd.io/_uploads/rJlCBXZDT.png) **1.2 选择「Node.js runtime」** ![image](https://hackmd.io/_uploads/Sy4eU7bP6.png) **1.3 不用选择** ![image](https://hackmd.io/_uploads/SyTgL7-vp.png) **1.4 安装成功** ![image](https://hackmd.io/_uploads/HJP-I7WDa.png) **1.5 验证，打开cmd输入「node --version」** ![image](https://hackmd.io/_uploads/r1efIQZva.png) 出现以下版本号说明安装成功 ![image](https://hackmd.io/_uploads/B1PMU7Zwp.png)