html2canvas 浏览器端截屏并下载保存(兼容IE)
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>文档标题</title>
<script src="https://cdn.bootcss.com/jquery/3.3.1/jquery.js"></script>
<script src="https://cdn.jsdelivr.net/bluebird/latest/bluebird.js"></script>
<script src="https://cdn.bootcss.com/html2canvas/0.5.0-beta3/html2canvas.js"></script>
<!-- <script src="https://cdn.jsdelivr.net/npm/canvas2image@1.0.5/canvas2image.js"></script> -->
<!-- <script src = "https://cdn.polyfill.io/v2/polyfill.min.js"></script> -->
<style>
a {
cursor: pointer;
color: rgb(85, 26, 139);
text-decoration: underline;
}
</style>
</head>
<body>
<div id="content" style="width: 300px; height: 300px; margin: 10px; background: red; border: 5px solid gray;">