<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery UI 进度条（Progressbar） - 不确定的值</title>
<link rel="stylesheet" href="https://libs.baidu.com/jqueryui/1.10.4/css/jquery-ui.min.css">
<script src="https://libs.baidu.com/jquery/1.10.2/jquery.min.js"></script>
<script src="https://libs.baidu.com/jqueryui/1.10.4/jquery-ui.min.js"></script>
<link rel="stylesheet" href="/demo/jqueryui/style.css">
<script>
$(function() {
$( "#progressbar" ).progressbar({
value: false
});
$( "button" ).on( "click", function( event ) {
var target = $( event.target ),
progressbar = $( "#progressbar" ),
progressbarValue = progressbar.find( ".ui-progressbar-value" );
if ( target.is( "#numButton" ) ) {
progressbar.progressbar( "option", {
value: Math.floor( Math.random() * 100 )
});
} else if ( target.is( "#colorButton" ) ) {
progressbarValue.css({
"background": '#' + Math.floor( Math.random() * 16777215 ).toString( 16 )
});
} else if ( target.is( "#falseButton" ) ) {
progressbar.progressbar( "option", "value", false );
}
});
});
</script>
<style>
#progressbar .ui-progressbar-value {
background-color: #ccc;
}
</style>
</head>
<body>
<div id="progressbar"></div>
<button id="numButton">随机值 - 确定</button>
<button id="falseButton">不确定</button>
<button id="colorButton">随机颜色</button>
</body>
</html>