版本：1.8.1
- https://cdn.bootcss.com/flatpickr/1.8.1/flatpickr.confetti.min.css
- https://cdn.bootcss.com/flatpickr/1.8.1/flatpickr.dark.min.css
- https://cdn.bootcss.com/flatpickr/1.8.1/flatpickr.js
- https://cdn.bootcss.com/flatpickr/1.8.1/flatpickr.material_blue.min.css
- https://cdn.bootcss.com/flatpickr/1.8.1/flatpickr.material_green.min.css
- https://cdn.bootcss.com/flatpickr/1.8.1/flatpickr.material_orange.min.css
- https://cdn.bootcss.com/flatpickr/1.8.1/flatpickr.material_red.min.css
- https://cdn.bootcss.com/flatpickr/1.8.1/flatpickr.min.css
- https://cdn.bootcss.com/flatpickr/1.8.1/flatpickr.min.js