on tap为什么点击后没反应？

分类：MUI

mui

<!doctype html>
<html>

<head>  
    <meta charset="UTF-8">  
    <title></title>  
    <meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />  
    <link href="css/mui.min.css" rel="stylesheet" />  
    <link rel="stylesheet" href="css/mui.css" />  
</head>

<body>
<div class="mui-content">
<ul class="mui-table-view" id="list1">
<li class="mui-table-view-cell">Item 1</li>
<li class="mui-table-view-cell">Item 2</li>
<li class="mui-table-view-cell">Item 3</li>
</ul>
</div>
<script type="text/javascript" src="js/mui.js" ></script>
<script src="js/mui.min.js" ></script>
<script type="text/javascript">
mui.init();
mui.plusReady(function(){
mui('#list1').on('tap','li',function(){
mui.toast('ok');
//alert('1');
});
});
</script>
</body>