源代码:
<!DOCTYPE html> <html> <body> <form id="myForm"> <select id="mySelect"> <option>Apple</option> <option>Pear</option> <option>Banana</option> <option>Orange</option> </select> </form> <p>The id of the form is: <script> document.write(document.getElementById("mySelect").form.id); </script> </p> </body> </html>
运行结果：