给定文法G(S):S → (A) | aA → A + S | S消除左递归后的文法为:选项: A:S → (A) | aA → A + S | S; B:S → (A) | aA →+SA’ |eA’ →S A’ ; C:S → (A) | aA →+SA’A’ →S A’ |e; D:S → (A) | aA →S A’ A’ →+SA’ |e 给定 文法 递归 发布时间:2024-05-12 16:28:49