前端开发之可以让swiper3兼容ie9的js

很喜欢在插件上进行修修改改。Swiper3是我很喜欢使用的一个轮播图插件。在这个插件上面，不知道是我改动的原因，还是下载的版本原因，我现在使用的这个版本的js竟然有大部分属性兼容ie9（感到很奇迹！！）。一，这个版本在ie9上面兼容什么呢？ 兼容自定义高度；传统swiper和此版本swiper对比图：（如图1）
图1
如果使用改动版本的js，可改善这个问题。 左右按钮有效，位置不变； 分页器有效，且可点击跳转到对应banner上； Loop循环属性有效； 禁止切换有效； 支持一行多列（slidesPerView参数）； Swiper的回调函数有效； breakpoints断点参数可用； 未知。改动版本在IE9上不兼容什么？ 不兼容自动切换； 不支持多列1行或者多列多行； 未知。二，Swiper（可复制以下代码，保存为js放于项目中）；
/**
* Swiper 3.4.2
* Most modern mobile touch slider and framework with hardware accelerated transitions
*
* http://www.idangero.us/swiper/
*
* Copyright 2017, Vladimir Kharlampidi
* The iDangero.us
* http://www.idangero.us/
*
* Licensed under MIT
*
* Released on: March 10, 2017
*/
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t=e(this).index()*x.params.slidesPerGroup

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