<!DOCTYPE html> <html> <head> <title>my title</title> <meta name="viewport" content="width=device-width initial-scale=1 maximum-scale=1"> <script type="text/javascript"> function up() { if (document.getElementById("f").value == "") { document.getElementById("result").innerHTML = "请选择文件"; } else { var fileObj = document.getElementById("f").files[0]; //创建xhr var xhr = new XMLHttpRequest(); var url = "uploadFile"; //FormData对象 var fd = new FormData(); fd.append("path", "D:\\"); //上传路径 ...