echo 1;
            } else {
                echo -1;
            }
        } else {
            echo -1;
        }
    }
    function aa1($value1, $value2)
    {
        $string = file_get_contents("data/teach.json");
        $j = json_decode($string, true);
        if (array_key_exists($value1, $j)) {
            if ($j[$value1] == $value2) {
                echo 1;
            } else {
                echo -1;
            }
        } else {
            echo -1;
        }
    }
}
if (isset($_POST['uid'])) {
    $m1 = new mm();
    if ($_POST['t'] == 0) {
        $m1->aa($_POST['uid'], $_POST['pwd']);
    } else {
        $m1->aa1($_POST['uid'], $_POST['pwd']);
    }
}