編輯代碼:
查看結果 »
試一試 - ©
w3ii.com
<!DOCTYPE html> <html> <head> <script> function preferedBrowser() { prefer = document.forms[0].browsers.value; alert("You prefer browsing internet with " + prefer); } </script> </head> <body> <form> Choose which browser you prefer: <select id="browsers" onchange="preferedBrowser()"> <option value="Chrome">Chrome</option> <option value="Internet Explorer">Internet Explorer</option> <option value="Firefox">Firefox</option> </select> </form> </body> </html>