代码复制
https://clipboardjs.com/
http://zeroclipboard.org/
http://blog.csdn.net/jyy_12/article/details/9218993
http://www.365mini.com/page/zeroclipboard-2_x-quick-start.htm
http://blog.sina.com.cn/s/blog_74924f2401017t0q.html
http://blog.csdn.net/starnight_cbj/article/details/3861105
http://www.cnblogs.com/tylerdonet/p/4533782.html
