版本：
文件：
- https://cdn.bootcdn.net/ajax/libs/PgwSlider/2.3.0/pgwslider.css
- https://cdn.bootcdn.net/ajax/libs/PgwSlider/2.3.0/pgwslider.js
- https://cdn.bootcdn.net/ajax/libs/PgwSlider/2.3.0/pgwslider.min.css
- https://cdn.bootcdn.net/ajax/libs/PgwSlider/2.3.0/pgwslider.min.js