<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta http-equiv="X-UA-Compatible" content="ie=edge" />
<title>屏幕截图 -- 微信专用</title>
</head>
<body>
<a type="button" id="down_button"><button id="creat">点击复制图片</button></a>
<div class="myImg" style="position:relative;">
<img src="body_background.png">
</div>
<script src="https://cdn.bootcss.com/jquery/3.3.1/jquery.js"></script>
<script src="https://cdn.bootcss.com/html2canvas/0.5.0-beta4/html2canvas.js"></script>
<script type="text/javascript">
$("#creat").click(function() {
html2canvas($("body"), { // $(".myImg")是你要复制生成canvas的区域，可以自己选
onrendered: function(canvas) {
dataURL = canvas.toDataURL("image/png");
$("body").append(canvas);
console.log(dataURL);
//下载图片
$('#down_button').attr('href', dataURL);
$('#down_button').attr('download', 'body_background.png');
},
width: 320,
height: 400
})
})
</script>
</body>
</html>
引入cdn