default

UK [d??f?lt]

vi. ?? ?? ?? ?? ??, ?? ? ?? ??, ??

vt ?? ?? ?? ??(?: ??); ?? ?? ??? ?? ??(??)

n. ???, ??? [??; ] Default, default

3?? ??: defaults ????: defaulting ????: defaulted ????: defaulted

selected

English [s?'lekt?d] American [s?'lekt?d]

adj.

v. to choose, Select (select? ???? ? ????)

?????? defaultSelected?? ???

??: ??? ??? ???? ?????. ?? ??? ???? true? ????, ??? ??? fasle? ?????.

??: ??optionObject.defaultSelected

?????? defaultSelected?? ?

<html>
<head>
	<meta charset="utf-8">
<script type="text/javascript">
function alertDefaultSelected()
  {
  var x=document.getElementById("mySelect").selectedIndex;
  var y=document.getElementsByTagName("option");
  var txt= y[x].text + " 是默認(rèn)的水果嗎? ";
  txt=txt + y[x].defaultSelected;
  alert(txt);
  }
</script>
</head>
<body>

<form>
選擇你喜歡的水果:
<select id="mySelect">
  <option>Apple</option>
  <option>Orange</option>
  <option selected="selected">Pineapple</option>
  <option>Banana</option>
</select>
<br />
<br />
<input type="button" onclick="alertDefaultSelected()"
value="選擇的水果是否是默認(rèn)的?">
</form>

</body>
</html>

???? ?? ?

??? ????? ??? "???? ??" ??? ?????