layui 字体图标
https://www.layui.com/doc/element/icon.html <i class="layui-icon layui-icon-template-1"></i> .layui-icon-template-1:before { content: "\e656"; } \e656 相当于 
编程PDF电子书免费下载: http://www.shitanlife.com/code 每天学习一点点
https://www.layui.com/doc/element/icon.html <i class="layui-icon layui-icon-template-1"></i> .layui-icon-template-1:before { content: "\e656"; } \e656 相当于 