如果你不想将Swiper文件放在你的项目中，你可以使用Swiper的CDN服务。
以下是各版本的Swiper CDN地址，要将3.x.x改成相应的版本，如3.4.2。
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/Swiper/3.x.x/css/swiper.css">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/Swiper/3.x.x/css/swiper.min.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/Swiper/3.x.x/js/swiper.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/Swiper/3.x.x/js/swiper.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/Swiper/3.x.x/js/swiper.jquery.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/Swiper/3.x.x/js/swiper.jquery.min.js"></script>