a*(b*c+d*e)+a,编译原理答:逆波兰式又称为后缀表达式。a*(b*c+d*e)+a ->(a*(b*c+d*e))a+ ->(a(b*c+d*e)*)a+ ->(a((b*c)(d*e)+)*)a+ ->(a(bc*de*+)*)a+ ->abc*de*+*a+ 三元式:(*,b,c)(*,d,e)(+,1,2)(*,a,3)(+,4,a)四元式:(*,b,c,T1)(*,d,e,T2)(+,T1,...
给力!2011年新年散分啦。高分求助编译原理高手帮忙做几道模拟题_百度知...答:答:( 1 )逆波兰式:,其中, BLE 表示汪或等于时的转向指令; [ … ] 表示标号。( 2 )四元式:(1) ( j>, a, b, (3))(2) ( j, , , (7) )(3) ( *, b, c, T1)(4) ( +, a, T1, T2)(5) ( :=, T2, , x)(6) ( j, , , (9))(7) ( -, b, a,...