效果如下：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<script src="jquery-1.11.2.min.js"></script>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
</head>
<body>
<div style="200px; height:35px; border:2px solid #60f">
<input style="196px; height:31px;" type="text" id="name" />
</div>
<div id="list" style="200px; height:500px; border:2px solid #60f
"></div>
<script type="text/javascript">
$("#name").keyup(function(){
var n=$(this).val();
if(n!="")
{
$.ajax({
url:"listchuli.php",
data:{n:n},
type:"POST",
dataType:"TEXT",
success: function(data){
var sz=data.split("|");
var str="";
for(var i=0;i<sz.length;i++){
str=str+"<div class='1'>"+sz[i]+"</div>";
}
$("#list").html(str);
}
});
}
else{
$("#list").html("");
}
});
</script>
</body>
</html>
2.处理页面
<?php
$name = $_POST["n"];
include("./lei/AAA.class.php");
$db = new AAA();
$sql = "select name from info where name like '%{$name}%' ";
echo $db->StrQuery($sql);