第一回接触这种查了好久也不会 =

第一回接触这种查了好久也不会 = - 求解

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Libérer： 2016-06-13 12:12:30

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第一次接触这种查了好久也不会 = - 求解

<br /><?php<br />session_start();<br /><br /> class chkuserlogin{<br /> <br />    private $username;<br />	private $password;<br />    <br />    <br />	public function __construct($username,$password){<br />	   $this->username=$username;<br />	   $this->password=$password;<br />	   <br />	<br />	  <br />	   require_once("connn.php");<br />	   $sql=mysql_query("select account from root where username='".$this->username."' and password='".$this->password."'",$conn);      <br /> $info=mysql_fetch_array($sql);<br />	   if($info==false){<br />	     echo "<script>alert('用户名或密码输入错误！');history.back();</script>";<br />	     exit;<br />	   }else{<br />	     if($_SESSION["unc"]!=""){<br />		   session_unregister("unc");<br />		 } <br />		 session_register("unc");<br />		 $_SESSION["unc"]=$this->username; <br />		 mysql_query("update root set logintimes=logintimes+1,lastlogintime='".date("Y-m-d H:i:s")."'",$conn);<br />	     echo "<script>alert('登录成功！');window.location.href='login.php';</script>"; <br />	    }<br />	  }<br /> }<br /><br />  $obj=new chkuserlogin($_POST["username"],md5($_POST["password"]));<br />  $obj->chk();<br />?><br />

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登录验证的一小段代码我数据库为 localhost root 无密码，我数据库已保存了一组密码。无限密码错误跳转页面而且也报错

= - 求解脱拜谢

------解决思路----------------------
你是怎么执行这个程序的
------解决思路----------------------

引用:

<br /><!DOCTYPE html><br /><html lang="en"><br />  <head><br />    <meta charset="utf-8" /><br />    <title>Administrator</title><br />    <br />   <br />    <br />    <br />    <link href="./css/bootstrap.min.css" rel="stylesheet" /><br />    <link href="./css/bootstrap-responsive.min.css" rel="stylesheet" /><br />    <br />    <br />    <link href="./css/font-awesome.css" rel="stylesheet" /><br />    <br />    <link href="./css/adminia.css" rel="stylesheet" /> <br />    <link href="./css/adminia-responsive.css" rel="stylesheet" /> <br />    <br />    <link href="./css/pages/login.css" rel="stylesheet" /> <br /><br />  <br />  <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /></head><br /><form name="connForm" method="post" action="conn.php" onSubmit="return InputCheck(this)">  <br /><body><br />	<br /><div class="navbar navbar-fixed-top"><br />	<br />	<div class="navbar-inner"><br />		<br />		<div class="container"><br />			<br />			<a class="btn btn-navbar" data-toggle="collapse" data-target=".nav-collapse"> <br />				<span class="icon-bar"></span> <br />				<span class="icon-bar"></span> <br />				<span class="icon-bar"></span> 				<br />			</a><br />			<br />			<a class="brand" href="./"> Admin</a><br />			<br />			<div class="nav-collapse"><br />			<br />				<br />			</div> <!-- /nav-collapse --><br />			<br />		</div> <!-- /container --><br />		<br />	</div> <!-- /navbar-inner --><br />	<br /></div> <!-- /navbar --><br /><br /><br /><div id="login-container"><br />	<br />	<br />	<div id="login-header"><br />		<br />		<h3>欢迎登陆用户保用注册后台</h3><br />		<br />	</div> <!-- /login-header --><br />	<br />	<div id="login-content" class="clearfix"><br />	<br />	 <br />				<fieldset><br /><br />					<div class="control-group"><br />						<label class="control-label" for="username">用户名：</label><br />						<div class="controls"><br />							<input type="text" class="" id="username" /><br />						</div><br />					</div><br />					<div class="control-group"><br />						<label class="control-label" for="password">密码：</label><br />						<div class="controls"><br />							<input type="password" class="" id="password" /><br />						</div><br />					</div><br />				</fieldset><br />				<br />				<div id="remember-me" class="pull-left"><br />					<input type="checkbox" name="remember" id="remember" /><br />					<label id="remember-label" for="remember">Remember Me</label><br />				</div><br />				<br />				<div class="pull-right"><br />					<button type="submit" class="btn btn-warning btn-large"><br />						Login<br />					</button><br />				</div><br />			</form><br />			<br />		</div> <!-- /login-content --><br />		<br />		<br />		<br />	<br /></div> <!-- /login-wrapper --><br /><br />    <br /><br /><!-- Le javascript<br />================================================== --><br /><!-- Placed at the end of the document so the pages load faster --><br /><script src="./js/jquery-1.7.2.min.js"></script><br /><br /><br /><script src="./js/bootstrap.js"></script><br /><br />  </body><br /></html><br /> = - 用这个 页面<br />

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你的用户名和密码没有提交过去啦