51help TIY
码：
<!DOCTYPE html> <html> <body> <h1 id="myH1"></h1> <p id="myP"></p> <script> // document.getElementById("myH1").innerHTML="Welcome to my Homepage"; // document.getElementById("myP").innerHTML="This is my first paragraph."; </script> <p><b>注释：</b>执行。</p> </body> </html>
查看结果: