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                                    <ｓｃｒｉｐｔ src="http://libs.baidu.com/jquery/2.0.0/jquery.min.js">        <ｓｃｒｉｐｔ src="http://libs.baidu.com/bootstrap/3.0.3/js/bootstrap.min.js">                <ｓｃｒｉｐｔ>            var maxid = 0;            function showmessage() {                //创建ajax对象                var xhr = new XMLHttpRequest();                //监听                xhr.onreadystatechange = function () {                    if (xhr.readyState === 4) {                        ｅｖａｌ("var info=" + xhr.responseText);                        var text = "";                        for (var i = 0; i < info.length; i++)                        {                            text += "
" +                                    "" + info[i].send + ":" +                                    "" + info[i].content + "" +                                    "(" + info[i].time + ")" +                                    "
";                            maxid = info[i].id;                        }                        var old = document.getElementById("msg").innerHTML;                        document.getElementById("msg").innerHTML = old + text;                        document.getElementById("msg").scrollTop = document.getElementById("msg").scrollHeight;                    }                };                //初始化                xhr.open("get", "./action.php?maxid=" + maxid);                //发送                xhr.send();            }            $(document).ready(                    function ()                    {                        showmessage()                        self.setInterval("showmessage()", 2000);                    }            );            function send() {                var postData ="content="+document.getElementById('content').value;                var xhr = new XMLHttpRequest();                xhr.open("POST", "./add.php", true);                //一定要写头信息不然服务器接收不到                xhr.setRequestHeader("Content-type", "application/x-www-form-urlencoded");                xhr.onreadystatechange = function () {                    var XMLHttpReq = xhr;                    if (XMLHttpReq.readyState == 4) {                        if (XMLHttpReq.status == 200) {                           document.getElementById('content').value="";                        }                    }                };                xhr.send(postData);            }                        
                            
                
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2. [文件] action.php ~ 367B 下载(0) 跳至 [1] [2] [3] [4] [全屏预览]

$id");while ($array = mysqli_fetch_assoc($data)) {    $info[] = $array;}; echo json_encode($info);

3. [文件] chat.sql ~ 424B 下载(0) 跳至 [1] [2] [3] [4] [全屏预览]

ｄｒｏｐ TABLE IF EXISTS `talk`;CREATE TABLE `talk` (  `id` int(10) unsigned NOT NULL AUTO_INCREMENT COMMENT 'id',  `send` varchar(10) CHARACTER SET utf8 DEFAULT NULL COMMENT '发送者昵称',  `ip` varchar(12) CHARACTER SET utf8 DEFAULT NULL,  `content` varchar(500) CHARACTER SET utf8 DEFAULT NULL,  `time` varchar(50) DEFAULT NULL,  PRIMARY KEY (`id`)) ENGINE=InnoDB AUTO_INCREMENT=52 DEFAULT CHARSET=utf8;

4. [文件] add.php ~ 459B 下载(0) 跳至 [1] [2] [3] [4] [全屏预览]