求问题所在
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>挑战题</title>
<script src="http://libs.baidu.com/jquery/1.9.0/jquery.js" type="text/javascript"></script>
</head>
<body>
<input type="button" value="显示">
<ul></ul>
<script>
$(function(){
var students=[
{name:"k999"，sex:"man",age:"20"},
{name:"k888"，sex:"woman",age:"20"},
{name:"k777"，sex:"woman",age:"21"}
];
$("input").bind("click",function(){
$(this).hide();
$.each(students,function(index.st){
$("ul").append("<li>name:"+st.name+" sex:"+st.sex+" age:"+st.age+"</li>")
})
})
})
</script>
</body>
</html>
