/**
  * 点击注册调用,存入注册信息
  * @return [type] [description]
  */
 public function checkRegisterInfo()
 {
     $email = $_POST['email'];
     $username = $_POST['username'];
     $password = $_POST['password'];
     $resu = Users::getRegisterInfo($email, $username, $password);
     if ($resu != "error") {
         // 将用户名和密码存入session
         // 将用户的信息存入
         Session::put('username', $username);
         Session::put('password', $password);
         Session::put('userkey', $resu);
         return Redirect::to('login');
     } else {
         return "注册失败!";
     }
 }