效果展示：
代码：
<!DOCTYPE html>
<html lang="en">
<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>Document</title>
<style>
#content {
500px;
height: 500px;
border: 1px solid rebeccapurple;
}
</style>
</head>
<body>
<div id="content">
<h2>文件拖入此处解析</h2>
</div>
</body>
<script>
let content = document.getElementById("content");
function scanFiles(item) {
console.log(item)
}
function handleDragOver(e) {
e.stopPropagation();
e.preventDefault();
console.log("xxxxx")
// console.log(e)
}
function handleFileSelect(e) {
// e.stopPropagation();
e.preventDefault();
let item = e.dataTransfer;
scanFiles(e);
var files = [];
[].forEach.call(e.dataTransfer.files, function (file) {
files.push(file);
}, false);
for (var f of files) {
var reader = new FileReader();
reader.readAsText(f);
//读取文件的内容
reader.onload = function () {
console.log("结果")
console.log(this.result)
};
}
}
content.addEventListener("dragover", handleDragOver, false);
content.addEventListener("drop", handleFileSelect, false);
</script>
</html>