使用递归循环的方式，代码如下：
<html>获取目录后可以在console中看到多个子目录和文件数组
<head>
<script src="//repo.bfw.wiki/bfwrepo/js/eruda.js"></script>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width,initial-scale=1.0,maximum=1.0,minimum=1.0,user-scalable=0" />
<title>BFW NEW PAGE</title>
<link type="text/css" rel="stylesheet" href="//repo.bfw.wiki/bfwrepo/css/bootstrap.4.3.1.min.css">
<style>
body{
padding: 10px;
}
</style>
</head>
<body>
<p><button id="openlocalfile">打开目录</button>
不要在iframe中打开，结果在console中查看</p>
<script>
const openbtn = document.getElementById('openlocalfile');
openbtn.onclick = async (evt) => {
const out = {};
const dirHandle = await showDirectoryPicker();
await handleDirectoryEntry( dirHandle, out );
console.log( out );
};
async function handleDirectoryEntry( dirHandle, out ) {
for await (const entry of dirHandle.values()) {
if (entry.kind === "file"){
const file = await entry.getFile();
out[ file.name ] = file;
}
if (entry.kind === "directory") {
const newOut = out[ entry.name ] = {};
await handleDirectoryEntry( entry, newOut );
}
}
}
</script>
</body>
</html>
还包含文件的详情信息呢
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