$( "#spinner" ).spinner( "option", "culture", $( this ).val() );如何理解
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>jQuery UI 旋转器（Spinner） - 货币</title>
<link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
<script src="//code.jquery.com/jquery-1.9.1.js"></script>
<script src="/static/js/jqueryui/resources/demos/external/jquery.mousewheel.js"></script>
<script src="/static/js/jqueryui/resources/demos/external/globalize.js"></script>
<script src="/static/js/jqueryui/resources/demos/external/globalize.culture.de-DE.js"></script>
<script src="/static/js/jqueryui/resources/demos/external/globalize.culture.ja-JP.js"></script>
<script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
<link rel="stylesheet" href="https://jqueryui.com/resources/demos/style.css">
<script>
$(function() {
$( "#currency" ).change(function() {
$( "#spinner" ).spinner( "option", "culture", $( this ).val() );
});
$( "#spinner" ).spinner({
min: 5,
max: 2500,
step: 25,
start: 1000,
numberFormat: "C"
});
});
</script>
</head>
<body>
<p>
<label for="currency">要捐款的货币</label>
<select id="currency" name="currency">
<option value="en-US">US $</option>
<option value="de-DE">EUR €</option>
<option value="ja-JP">YEN ¥</option>
</select>
</p>
<p>
<label for="spinner">要捐款的数量：</label>
<input id="spinner" name="spinner" value="5">
</p>
</body>
</html>
