#include #define f(a,b,x) a*x+b void main() { printf("%d,%d\n",f(3,2,1),f(6,5,f(3,2,1))); }怎么得到5,25的?

#include #define f(a,b,x) a*x+b void main() { printf("%d,%d\n",f(3,2,1),f(6,5,f(3,2,1))); }
怎么得到5,25的?

3*1+2 = 5
6*f(3,2,1)+5 = 6*3*1+2+5 = 25