<!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>
* {
margin: 0;
padding: 0;
}
#file {
display: none;
}
</style>
</head>
<body>
<div class="contains">
<input type="file" id="file" />
<button id="btn">上传文件</button>
</div>
</body>
<script>
const btn = document.getElementById('btn');
const file = document.getElementById('file');
btn.addEventListener('click', function () {
// 让上传文件的按钮点击下
file.click();
// 监听改变
file.addEventListener('change', function (e) {
console.log(e.target.files[0]);
const $file = e.target.files[0];
// 文件转换为bs64
let reader = new FileReader();
reader.readAsDataURL($file)
reader.onload = function (e) {
console.log(e.currentTarget.result)
}
})
})
</script>
</html>
记录一次前端上传按钮按钮样式修改及上传图片bs64处理
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转载自blog.csdn.net/kuangshp128/article/details/106617582
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