<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
</head>
<body>
<a href="" id="download">点击下载</a>
<script>
let div = "<div>我是div</div>"
let blob = new Blob([div],{type:'text/plain'})
let blobUrl = URL.createObjectURL(blob)
let a = document.getElementById('download')
a.href = blobUrl
a.download = "我是下载的名字"
</script>
</body>
</html>
