Question

路过的C大神来看看这道题.#include#define M(x,y,z) x*y+zint main(){int a=

Answer 1

宏替换后是

a + b * b + c + c + a

即

1 + 2 * 2 + 3 + 3 + 1 = 12

应该这样定义宏

#define M(x,y,z) (x)*(y)+(z),那么替换后是

(1 + 2) * (2 + 3) + (3 + 1) = 19