v4.7.0下载地址：
https://fontawesome.com/v4.7.0/get-started/#modal-download
Icons：
https://fontawesome.com/v4.7.0/icons/
示例:
https://fontawesome.com/v4.7.0/examples/
把css和fonts文件拷贝到相关目录即可
<link rel="stylesheet" href="path/to/font-awesome/css/font-awesome.min.css">原文：https://blog.51cto.com/dzm911/2376417