Node Sass could not find a binding for your current environment: Windows 64-bit with Node.js 8.x

在如图下执行解决方案：

1. cnpm install -g cnpm

2. cnpm install

3. cnpm install node-sass

如果下载过慢出现下面提示，那就是下载过慢，可以选择使用淘宝镜像

npm WARN deprecated core-js@2.6.10: core-js@<3 is no longer maintained and not recommended for usage due to the number of issues. Please, upgrade your dependencies to the actual version of core-js@3.

1. npm config set registry https://registry.npm.taobao.org

2. – 配置后可通过下面方式来验证是否成功

3. npm config get registry

4. – 或npm info express