W3School TIY
编辑您的代码：
<!DOCTYPE html> <html> <head> <title>HTML DOM Time 对象_w3cschool在线教程</title> </head> <body> <h3>演示如何访问 TITLE 元素</h3> <p>点击按钮来获得文档标题的文本。</p> <p id="demo"></p> <button onclick="myFunction()">试一下</button> <script> function myFunction() { var x = document.getElementsByTagName("TITLE")[0].text; document.getElementById("demo").innerHTML = x; } </script> </body> </html>
查看结果: