中文摘要：

在有限域F8上定义码C，证明了码C是参数为[8，4，4]的八元线性码；由线性码C构造码G，确定了码G的码长，维数和最小距离，证明码G是参数[40，20，8]的二元线性码．

英文摘要：

A code C is defined in the finite fields over Fs. It is proved that code C is an octa-element linear code over F~ with parameters [8,4,4-1. A code G is constructed through code C, its code length, dimension and minimum distance are determined, and it is proved that code G is a binary linear code with parameters 1-40, 20, 8-1.