写出下列表达式的后缀形式。(1) (a+b)/(c+d)(2) b^2-4*a*c(3) a*c-b/c^2 (4) (a+b)*c+d/(e+f)(5) (a+b)*(c*d+e)-a*c 发布时间:2024-05-16 10:27:24