public function findPassword($setp = 1)
 {
     switch ($setp) {
         case '1':
             $this->display(findPassword . '_1');
             break;
         case '2':
             if (IS_POST) {
                 /* 检测验证码 */
                 $sms_code = I('sms_code');
                 $code = cookie('_findPassword_code');
                 if (empty($code) || $code != $sms_code) {
                     $this->error('验证码输入错误!');
                 }
                 $mobile = I('mobile', '', 'trim');
                 if (empty($mobile)) {
                     $this->error('用户名不能为空!');
                 }
                 $User = new UserApi();
                 if (!$User->checkMobile($mobile)) {
                     $this->error('用户名不存在!');
                 }
                 cookie('_findPassword_check', 1, 120);
                 cookie('_findPassword_mobile', $mobile, 120);
                 $this->assign('username', $mobile);
                 $this->display(findPassword . '_2');
             }
             break;
         case '3':
             if (IS_POST) {
                 if (!cookie('_findPassword_check')) {
                     $this->error('验证失败!');
                 }
                 $mobile = cookie('_findPassword_mobile');
                 $password = I('password', '', 'trim');
                 $Api = new UserApi();
                 if ($Api->findPassword($mobile, $password)) {
                     $this->display(findPassword . '_3');
                 } else {
                     $this->error('修改失败');
                 }
             }
             break;
     }
 }