鏄殑锛孹MLHttpRequest瀵硅薄鍙互鐢ㄦ潵涓婁紶鏂囦欢銆傚彲浠ヤ娇鐢‵ormData瀵硅薄灏嗘枃浠舵坊鍔犲埌璇锋眰涓紝鐒跺悗浣跨敤XMLHttpRequest瀵硅薄灏嗘枃浠跺彂閫佸埌鏈嶅姟鍣ㄣ€備互涓嬫槸涓€涓畝鍗曠殑绀轰緥浠ｇ爜锛?/p>

var fileInput = document.getElementById('fileInput');
var file = fileInput.files[0];

var formData = new FormData();
formData.append('file', file);

var xhr = new XMLHttpRequest();
xhr.open('POST', 'upload.php', true);
xhr.onload = function() {
  if (xhr.status === 200) {
    console.log('File uploaded successfully');
  } else {
    console.log('File upload failed');
  }
};
xhr.send(formData);

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