6.5.3 option元素

                   <p>

                            <fieldset title="Name">

                                     First name: <input type ="text" name="fname" maxlength="32"/><br/>

                                     Last name: <input type="text" name="lname" maxlength="32"/><br/>

                            </fieldset>

                            <fieldset title="Info">

                                     <select name="sex">

                                               <option value="F">Female</option>