标签：style blog http ar io color os sp java
前端代码：
<script type="text/javascript"> var xmlHttp; function createXMLHttpRequest(){ if(window.ActiveXObject){ xmlHttp = new ActiveXObject("Microsoft.XMLHTTP"); } else if(window.XMLHttpRequest){ xmlHttp = new XMLHttpRequest(); } } function start(){ createXMLHttpRequest(); var url="getTime.php"; xmlHttp.open("GET",url,true); xmlHttp.onreadystatechange = callback; xmlHttp.send(null); } function callback(){ if(xmlHttp.readyState == 4){ if(xmlHttp.status == 200){ document.getElementById("showtime").innerHTML = xmlHttp.responseText; setTimeout("start()",1000); } } } </script> <html> <head> <meta http-equiv="content-type" content="text/html;charset=gb2312" /> </head> <body> <h1>Ajax动态显示时间</h1> <input type="button" value="开始显示时间" id="go" onclick="start()" /> <p>当前时间：<font color="red"><span id="showtime"></span></font></p> </body> </html>
后端代码：
<?php header("cache-control:no-cache,must-revalidate"); header("Content-Type:text/html;charset=utf-8"); $showtime = date("北京时间Y年m月d日H:i:s"); echo $showtime; ?>
标签：style blog http ar io color os sp java
原文地址：http://www.cnblogs.com/lxxhad/p/4168173.html
