A.(1101011.001)2 B.(01101010.01)2 C.(11101011.01)2 D.(01100111.01)2
A.(652.16)10 B.(1618.13)10 C.(652.13)10 D.(1618.06)10
A.B.C.D.
A.余3码B.循环码C.格雷码D.8421码
A.电路1 B.电路2 C.电路3 D.电路4