源代碼
點擊運行
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>教程</title> </head> <body> <form id="myForm"> <select id="mySelect"> <option>蘋果</option> <option>梨子</option> <option>香蕉</option> <option>橙子</option> </select> </form> <p>form的ID為： <script> document.write(document.getElementById("mySelect").form.id); </script> </p> </body> </html>
運行結果