版本：
文件：
- https://cdn.bootcdn.net/ajax/libs/force-js/0.1.3/force.js
- https://cdn.bootcdn.net/ajax/libs/force-js/0.1.3/force.min.js
- https://cdn.bootcdn.net/ajax/libs/force-js/0.1.3/force.min.js.map
The easy way to scroll and animate your page