验证方面写的不是很完整，正在完善当中

     display();    }    /**     * 登录验证     */    public  function Check_Login(){        //验证码检测       $names=$_POST['Captcha'];        if($this->check_verify($names)==false){            $data['error']=1;            $data['msg']="验证码错误";            $this->ajaxReturn($data);        }        //用户检测        $uname=I('post.username');        $upasswd=I('post.password');        $map['uname']=$uname;        $map['state']=1;        $logins=M('login')->where($map)->find();        if($logins)        {            if($logins['upasswd']!=$upasswd)            {                $data['error']=1;                $data['msg']="密码错误";                $this->ajaxReturn($data);            }            session("admin",$logins);            var_dump($logins);           redirect(U('Index/index'));        }    }    /**     * 验证码生成     */    public  function Verifys()    {        $config=array(            'fontSzie'=>30, //验证码字体大小            'length'=>4,//验证码位数            'useImgBg'=>true        );        $verify=new \Think\Verify($config);        $verify->useZh=true;        $verify->zhSet="梦起软件工作室";        $verify->fontttf='simhei.ttf';        $verify->entry();    }    /**     * 验证码检测     */    public  function check_verify($code,$id="")    {        $verify=new \Think\Verify();        return $verify->check($code,$id);    }    /**     * 退出登录     */    public  function out_login(){        session("admin",null);        redirect(U('Login/login'));    }}

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