c++ 宏的使用

#include <stdio.h>
#include "stdlib.h"
#define MAX(X,Y)(((X)>(Y))?(X):(Y))
#define MAX(X,Y)(((X)<(Y))?(X):(Y))
#define SQR(X) (X*X)
#define DEBUG

int main()
{
int a,b =3;
a = SQR(b+2);
printf("a = %d\n",a);

return 0;

}

#define SQR(X) (（X）*（X）)  这样才是25