一、代码
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<input type="file" id="fileInput">
<script>
document.getElementById('fileInput').addEventListener('change', function () {
console.log(this.files);
let file = this.files[0];
// //下载文件
let aTag = document.createElement('a');//创建一个a标签
aTag.download = file.name;
let href = URL.createObjectURL(file);//获取url
aTag.href = href;
aTag.click();
URL.revokeObjectURL(href);//释放url
})
</script>
</body>
</html>
二、效果
选择一个文件后，自动通过链接下载下来
=========================================================
