网页打印辅助库。
引用代码
<link rel="stylesheet" href="https://cdn.bootcdn.net/ajax/libs/print-js/1.6.0/print.min.css">\n<script src="https://cdn.bootcdn.net/ajax/libs/print-js/1.6.0/print.min.js"></script>资源地址
https://cdn.bootcdn.net/ajax/libs/print-js/1.6.0/print.min.js