获取QQ昵称 - 简单高效的代码示例 - 常规

<html>
 <head> 
 <meta charset="utf-8" name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
 <title>获取QQ名字</title>
 <style>
 </style>
 </head>
 <body>
  <script>
  var xhr = new XMLHttpRequest();
  xhr.onreadystatechange = function(){
  };
  xhr.open("GET","https://r.qzone.qq.com/fcg-bin/cgi_get_portrait.fcg?uins=3338007395");
  xhr.setRequestHeader('User-Agent', 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36');
  xhr.setRequestHeader('Content-Type', 'application/json');
  xhr.send("");
  </script>
 </body>
</html>