很急!!!关于JQuery的ajax交互显示

Question

html代码如下<script>
$(document).ready(function(){
    $.ajax({
        url:test1.php,
        type:"POST",
        error: function(msg){    
            alert('Error loading XML document'+msg);    
        },
        success: function(data)
        {
           for(i=1;i<data;i++){
             $.ajax({
                    url:test2.php,
                    type:"POST",
                    data:i,
                    error: function(msg){    
                        alert('Error loading XML document'+msg);    
                   },
                    success: function(data)
                   {
                     $('#MESSAGE').html(data)
                    }
             });
           }
        }
    });
}）
</script>
<div id=MESSAGE></div>test1.php代码<?php
echo 5;
?>test2.php代码<?php
$num = $_POST['num'];
sleep(3);//等待3秒
echo $num;
?>为什么等待9秒左右在<div id=MESSAGE></div>位置显示最后的值4呢，怎么才能从0开始显示然后一直到1,2,3,4呢？
请大牛帮帮忙 谢谢了。

Answer 1

PHP我不懂，不过$('#MESSAGE').html(data)是设置值，而不是追加值，应该是之前的值被覆盖了

Answer 2

$('#MESSAGE').html($('#MESSAGE').html()+data)
获取--追加---设置

Answer 3

有点明白你的意思了=。=！var count;
        var i = 0;
        $(function() {
            $.ajax(
                url:text1.php,
                type: "POST",
                error: function(msg) {
                    alert('Error loading XML document' + msg);
                },
                success: function(data) {
                    count = data;
                    Show();
                }
            });
        })        function Show() {
            if (i < count) {
                $.ajax({
                    url: text2.php,
                    type: "POST",
                    data: "name=" + i,
                    error: function(msg) {
                        alert('Error loading XML document' + msg);
                    },
                    success: function(data) {
                        $('#MESSAGE').html(data)
                    }
                });
                i++;
                setTimeout(Show, 3000);
            }else{
                i=count=null;
            }
        }
我也是初学=。=！
我就想的到这个了=。=！
反正for循环是不好用的=。=！
所以我把第二个ajax分离出来用延迟调用了=。=！
你试试吧，不成别怪我哦！

Answer 4

请搜索Concurrent.Thread
如果你系统中大量用到javascript,可以考虑多线程的这个日本东东。Concurrent.Thread.js

Answer 5

<script>
$(document).ready(function(){
    $.ajax({
        url:test1.php,
        type:"POST",
        error: function(msg){    
            alert('Error loading XML document'+msg);    
        },
        success: function(data)
        {
           for(i=1;i<data;i++){
             $.ajax({
                    url:test2.php,
                    type:"POST",
                    data:i,
                    error: function(msg){    
                        alert('Error loading XML document'+msg);    
                   },
                    success: function(data)
                   {
                     $('#MESSAGE').append(data)
                    }
             });
           }
        }
    });
}）
</script>
<div id=MESSAGE></div>

Answer 6

PHP是没有用过，不过，是不是：url:test2.php,
这个要改为：
url:'test2.php',