In longitudinal redundancy checking and cyclic redundancy checking, a character that is transmitted by the sender after each message block and is compared with a block-check character computed by the receiver to determine if the transmission was successful.; 在縱向冗余檢驗(yàn)和循環(huán)冗余檢驗(yàn)中,由發(fā)送端在每信息塊之后發(fā)送的一種字符,并與由 接收端計(jì)算出來(lái)的塊檢驗(yàn)字符進(jìn)行比較,以確定發(fā)送是否成功。參閱parity。