ajax实现输入提示效果

来源：宝玛科技网

本文实例为大家分享了ajax实现输入提示效果的具体代码，供大家参考，具体内容如下

网站主页

<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <title>Title</title>
 <style>
 *{
 margin:0px auto;
 padding:0px;
 }
 .l{
 height:50px;
 width:198px;
 border-bottom:1px solid black;
 text-align: center;
 line-height:40px;
 vertical-align: middle;
 }
 </style>
 <script src="../wenjian/jquery-2.2.3.min.js"></script>
</head>
<body>
<div style="height: 50px;width: 200px"><input type="text" id="name" style="width: 198px;height: 48px;"></div>
<div id="list" style="height: 500px;width: 200px;border: 1px solid black">
<!--<div id="l">zhongguo</div>-->
</div>

</body>
</html>
<script>
$("#name").keyup(function () {
 var n = $("#name").val();
 if (n != ""){
 $.ajax({
 url:'ltchuli.php',
 data:{n:n},
 type:'post',
// dataType:'text',
 dataType:'json',
 success:function (data) {
//text写法
// var s = data.split("|");
// var str = "";
// for (var i=0;i<s.length;i++)
// {
// str = str + "<div class='l'>" +s[i] +"</div>";
// }
// $("#list").html(str);
//json写法

 for (var i in data){
 $("#list").append("<div class='l'>" +data[i] +"</div>");
 }
 }
 });
}else {
 $("#list").html("");
 }
})
</script>

处理页面

<?php
/**
 * Created by fcc
 * User: Administrator
 * Date: 2017/10/30
 * Time: 9:52
 */
$n = $_POST['n'];
require_once "../wenjian/DBDA.class.php";
$db = new DBDA();
$obj = "select region_name from region WHERE region_name LIKE '%{$n}%' ";
$data = $db->Query($obj);
//echo $data;
echo json_encode($data);