版本：
文件：
- https://cdn.bootcdn.net/ajax/libs/jsel/1.1.6/jsel.js
- https://cdn.bootcdn.net/ajax/libs/jsel/1.1.6/jsel.min.js
- https://cdn.bootcdn.net/ajax/libs/jsel/1.1.6/jsel.min.js.map
DOM 3 XPath implementation for JavaScript objects.