dēnglù xiàoyuán xìtǒng shí, yànzhèngmǎ tōngcháng shì línshí shùzì, bùshì gùdìng mìmǎ

登录校园系统时，验证码通常是临时数字，不是固定密码。

When logging into the campus system, the verification code is usually a temporary number, not a fixed password.