ajax技术始终出去发送状态,该如何解决

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發布： 2016-06-13 12:29:37

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ajax技术始终出去发送状态
ajax.js代码：
       var xmlHttp;
function S_xmlhttprequest(){
    if(window.ActiveXObject){
       xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
    }
    else if(widow.XMLHttpRequest){
       xmlHttp=new XMLHttpRequest();
    }
}
function funphp100(url){
    S_xmlhttprequest();
    xmlHttp.open("GET","for.php?id="+url,true);
    xmlHttp.onreadystatechange=byphp;
    xmlHttp.send(null);
}
function byphp(){
   if(xmlHttp.readyState==1){
   document.getElementById('php100').innerHTML="loading....";
   }
   if(xmlHttp.readyState==4){

          var byphp100 = xmlHttp.responseText;
          document.getElementById('php100').innerHTML=byphp100;

    }

}
for.php代码
           if($id=$_GET[id]){
  for($i=1;$i
echo $i;
sleep(2);
   }
   exit();
}
?>
index.php代码：
          <script></script>
o
t
x

if($id=$_GET[id]){<br />
  for($i=1;$i<=5;$i++){<br />
<br />
echo $i;<br />
//sleep(2);<br />
   }<br />
   exit();<br />
}

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<html><br />
<head><br />
	<title> </title>	<br />
	<script type="text/javascript" src='jquery-1.4.2.min.js'></script><br />
<br />
</head><br />
<script type="text/javascript"><br />
	var xmlHttp;<br />
	function S_xmlhttprequest(){<br />
		if(window.ActiveXObject){<br />
			xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");<br />
		}<br />
		else if(window.XMLHttpRequest){<br />
			xmlHttp=new XMLHttpRequest();<br />
		}<br />
	}<br />
	function funphp100(url){<br />
		S_xmlhttprequest();<br />
		xmlHttp.open("GET","test.php?id="+url,true);<br />
		xmlHttp.onreadystatechange=byphp;<br />
		xmlHttp.send(null);<br />
	}<br />
	function byphp(){<br />
		if(xmlHttp.readyState==1){<br />
			document.getElementById('php100').innerHTML="loading....";<br />
		}<br />
		if(xmlHttp.readyState==4){<br />
<br />
			var byphp100 = xmlHttp.responseText;<br />
			document.getElementById('php100').innerHTML=byphp100;<br />
<br />
		}<br />
<br />
	}<br />
<br />
</script><br />
<body><br />
	<a href= "#" onclick="funphp100('o')">o</a><br />
	<a href= "#" onclick="funphp100('t')">t</a><br />
	<a href= "#" onclick="funphp100('x')">x</a><br />
	<br><br />
	<div id="php100"></div><br />
</body><br />
</html>

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