jquery ??() ??? ???
??: width() ???? ???? ??? ??? ????? ?????.
?? ??: ? ??? ???? ??? ??? ?????. ? ???? ??? ??? ??? ???? ??? ??(?? ??)? ?????.
??: ??$(selector).width()
?? ??: ???? ?? ??? ??? ?????.
??: ??$(selector).width(length)
????:
| ???? | Description |
| length | ?? ?????. ??? ??? ?????. ?? ??? ???? ??? ?? px ??? ?????. |
??? ???? ??? ?????. ??? ???? ???? ?? ??? ??? ?????.
??: ??$(selector).width(function(index,oldwidth))
????:
| Parameters | Description |
| function(index,oldwidth) | ??? ?? ?? return ??? ??? ? ??? ?? ?????. |
| index | ????. ??? |
| oldvalue | ? ??? ??? ?????. ???? ?? ?? ?????. |
jquery ??() ??? ?
<html>
<head>
<script type="text/javascript" src="http://apps.bdimg.com/libs/jquery/2.1.1/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$(".btn1").click(function(){
$("p").width(200);
});
});
</script>
</head>
<body>
<p style="background-color:yellow">This is a paragraph.</p>
<button class="btn1">改變寬度</button>
</body>
</html>??? ????? ??? "???? ??" ??? ?????