<html>
<head><script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs
/jquery/1.4.0/jquery.min.js"></script>
</head>
<body>
<select id='abc'>
<option value='v'>Volvo</option>
<option value='s'>Saab</option>
<option value='m'>Mercedes</option>
<option value='a'>Audi</option>
</select>
<input type='text' id='efg'>
<script type='text/javascript'>
$('#efg').click(function(){
$(this).hide();
</script>
</body>
<head><script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs
/jquery/1.4.0/jquery.min.js"></script>
</head>
<body>
<select id='abc'>
<option value='v'>Volvo</option>
<option value='s'>Saab</option>
<option value='m'>Mercedes</option>
<option value='a'>Audi</option>
</select>
<input type='text' id='efg'>
<script type='text/javascript'>
$('#efg').click(function(){
$(this).hide();
$('#abc').val('a');
//$('#abc')[0].selectedIndex=2 --同上
})</script>
</body>
</html>
<input type='text' id='efg' onblur="abc(this);">
<script type='text/javascript'>
function abc(i){
alert(i.value);
}
</script>
<script type="text/javascript">
$(function(){
$("#sub1").click(function(){
alert(this.id);
alert($(this)[0].id); //this==$(this)[0]
});
});
function test(i){
alert(i.id);
}
</script>
</head>
<body>
<div>
<div id="sub1">fjdsk</div>
<div id="sub2" onclick="test(this);">fjdks</div>
</div>
</body>
总结:
jquery 获得的是对象的集合,若访id,name,等属性,必须加上索引 $('#abc')[1].id
javascript 获得的可直接用