程序代码：

#include "stdio.h"
#define NL putchar('\n')
#define print(a,y) printf("y = %a\t",(y))
void main()
{
    int Y = 4;
   printf("hello world!!");
   NL;
   print(d,Y);
}
  

程序代码：

#include "stdio.h"
#define NL putchar('n')
#define PR(format,value) printf("value = %format\t",(value))
#define PRINT1(f,x1) PR(f,x1);NL
#define PRINT2(f,x1,x2) PR(f,x1);PRINT1(f,x2)
int main(void)
{
   int x=5,x1=3,x2=8;
   PR(d,x);
   PRINT1(d,x);
   PRINT2(d,x1,x2);
}