显示所有 meta 属性内容 - 在线编辑器

          <!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>蜜蜂教程(mifengjc.com)</title>
  <meta name="keywords" content="HTML, DHTML, CSS, XHTML, JavaScript">
  <meta name="description" content="Free Web tutorials">
  <meta name="author" content="Hege Refsnes">
  <meta http-equiv="Content-Type" content="text/html;charset=utf-8">
  <script>
    function displayResult() {
      var x = document.getElementsByTagName("meta");
      var txt = "";
      for (var i = 0; i < x.length; i++) {
        txt = txt + "Content of " + (i + 1) + ". meta tag: " + x[i].content + "<br>";
      }
      document.getElementById("result").innerHTML = txt;
    }
  </script>
</head>
<body>

  <button type="button" onclick="displayResult()">显示 Meta 内容</button>

  <p id="result"></p>

</body>
</html>
        