html代码：
<!DOCTYPE HTML>
<html lang="en-US"><head> <meta charset="UTF-8"> <title></title> <style type="text/css"> div{width:100px;height:100px;border:1px solid red;} </style> <script type="text/javascript" src="../jquery.1.9.1.min.js"></script></head><body> <div οnclick='test1();'>post</div> <div οnclick='test2();'>get</div> <div οnclick='test3();'>ajax</div> <script type="text/javascript"> function test1(){ var pft = 333; var ads = 'sss'; $.post('./post.php',{'page':'1','profit':pft,'address':ads},function(data){ alert(data.page); alert(data.profit); alert(data.address); alert(data.arr.id);alert(data.arr.name); }, "json");//设置了获取数据的类型，所以得到的数据格式为json类型的 } function test2(){ var pft = 444; var ads = 'sss'; $.get('./get.php',{'page':'2','profit':pft,'address':ads},function(data){ alert(data.page); alert(data.profit); alert(data.address); alert(data.arr.id);alert(data.arr.name); }, "json");//设置了获取数据的类型，所以得到的数据格式为json类型的 } function test3(){ var pft = 555; var ads = 'sss'; $.ajax({ url:'./ajax.php',type:"post", //请求的格式 data:{'page':'3','profit':pft,'address':ads},async:false, //异步dataType:'json', success:function(data){ alert(data.page); alert(data.profit); alert(data.address); alert(data.arr.id); alert(data.arr.name); }, error:function(er){ BackErr(er); }}); } </script></body></html>
post.php 代码：
<?php
$page = $_POST['page']; $profit = $_POST['profit']; $address = $_POST['address']; $arr = array( 'page'=>$page, 'profit'=>$profit, 'address'=>$address, 'arr'=>array( 'id'=>22, 'name'=>'china' ) );exit(json_encode($arr));get.php代码：
<?php
$page = $_GET['page']; $profit = $_GET['profit']; $address = $_GET['address']; $arr = array( 'page'=>$page, 'profit'=>$profit, 'address'=>$address, 'arr'=>array( 'id'=>22, 'name'=>'china' ) );exit(json_encode($arr));
ajax.php 代码：
<?php
$page = $_POST['page']; $profit = $_POST['profit']; $address = $_POST['address']; $arr = array( 'page'=>$page, 'profit'=>$profit, 'address'=>$address, 'arr'=>array( 'id'=>22, 'name'=>'china' ) );exit(json_encode($arr));