public function login() { //获取教务网密码 $inputPasswd = $this->passwd; $passwdClass = new Passwd($this->sid); if (empty($this->passwd)) { $this->passwd = $passwdClass->cwc(); } $result = parent::login(); //保存密码 if ($result && !empty($inputPasswd)) { $passwdClass->cwc($inputPasswd); } return $result; }