/*

• HTML */ 上传

/*

• JS */ var files = document.getElementById('upload').files;

document.getElementById('upload-btn').addEventListener('click', uploadFiles);

function uploadFiles() { for (var i = 0; i < files.length; i++) { var file = files[i]; var xhr = new XMLHttpRequest(); xhr.open('POST', '/upload', true); xhr.onload = function() { if (xhr.status === 200) { console.log('上传成功：' + file.name); } else { console.log('上传失败：' + file.name); } };

// formData 表单数据
var formData = new FormData();
formData.append('file', file);

xhr.send(formData);

} }