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？

1. 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。

1. 左右按钮有效，位置不变；
2. 分页器有效，且可点击跳转到对应banner上；
3. Loop循环属性有效；
4. 禁止切换有效；
5. 支持一行多列（slidesPerView参数）；
6. Swiper的回调函数有效；
7. breakpoints断点参数可用；
8. 未知。

改动版本在IE9上不兼容什么？

1. 不兼容自动切换；
2. 不支持多列1行或者多列多行；
3. 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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n(){i&&i()}var o;e.complete&&r?n():a?(o=new window.Image,o.onload=n,o.onerror=n,s&&(o.sizes=s),t&&(o.srcset=t),a&&(o.src=a)):n()},x.preloadImages=function(){function e(){void 0!==x&&null!==x&&x&&(void 0!==x.imagesLoaded&&x.imagesLoaded++,x.imagesLoaded===x.imagesToLoad.length&&(x.params.updateOnImagesReady&&x.update(),x.emit("onImagesReady",x)))}x.imagesToLoad=x.container.find("img");for(var a=0;a<x.imagesToLoad.length;a++)x.loadImage(x.imagesToLoad[a],x.imagesToLoad[a].currentSrc||x.imagesToLoad[a].getAttribute("src"),x.imagesToLoad[a].srcset||x.imagesToLoad[a].getAttribute("srcset"),x.imagesToLoad[a].sizes||x.imagesToLoad[a].getAttribute("sizes"),!0,e)},x.autoplayTimeoutId=void 0,x.autoplaying=!1,x.autoplayPaused=!1,x.startAutoplay=function(){return void 0===x.autoplayTimeoutId&&(!!x.params.autoplay&&(!x.autoplaying&&(x.autoplaying=!0,x.emit("onAutoplayStart",x),void 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