版本：
文件：
- https://cdn.bootcdn.net/ajax/libs/svgeezy/1.0.0/svgeezy.js
- https://cdn.bootcdn.net/ajax/libs/svgeezy/1.0.0/svgeezy.min.js
A simple JavaScript plugin which detects SVG images on your website, and automatically looks for a standard image fallback for those older, less capable browsers.