Simple pages with JavaScript for scanning QRcode to login. It's combine with three parts, the QRcode display page , the page after scanning QRcode, the page after login successful.
一个模仿微信web二维码扫描登录的网页例子。主要包含三部分： QRcode显示界面， 扫描二维码后跳转界面，成功登陆后跳转。
usage（用法）：
- cnpm install
- node index.js
- http://localhost:3000