版本：4.1.0
- https://cdn.bootcdn.net/ajax/libs/cropper/4.1.0/cropper.css
- https://cdn.bootcdn.net/ajax/libs/cropper/4.1.0/cropper.js
- https://cdn.bootcdn.net/ajax/libs/cropper/4.1.0/cropper.min.css
- https://cdn.bootcdn.net/ajax/libs/cropper/4.1.0/cropper.min.js