版本：
文件：
- https://cdn.bootcdn.net/ajax/libs/zclip/1.1.2/ZeroClipboard.swf
- https://cdn.bootcdn.net/ajax/libs/zclip/1.1.2/jquery.zclip.js
- https://cdn.bootcdn.net/ajax/libs/zclip/1.1.2/jquery.zclip.min.js
A lightweight jQuery "copy to clipboard" plugin