GRS码(Generalized Reed-Solomon Code)定义: 令 k ≤ n ≤ q k\le n\le q k≤n≤q, α ∈ F q n \alpha\in\mathbb{F}_q^n α∈Fqn是n元组( α = ( α 1 , . . . , α n ) , α i ≠ α j , ∀ i ≠ j ∈ { 1 , . . . , n } \alpha=(\alpha_1,...,\alpha_n),\alpha_i\ne \alpha_j,\forall i\ne j\in \{1,...,n\} α=(α1,...,αn),αi=αj,∀i=