• 2022-06-04
    文法G[N]为:N→D|ND D→0|1|2|3|4|5|6|7|8|9 G[N]的语言是什么?
    A: L(G[N])={[img=23x19]180344213df2ad7.png[/img] | V∈ {0,1,2,3,4,5,6,7,8,9},n>=1}
    B: L(G[N])={非负整数}
    C: L(G[N])={允许0 开头的非负整数}
    D: L(G[N])={[img=23x19]180344213df2ad7.png[/img] | V∈ {0,1,2,3,4,5,6,7,8,9},n>=0}