#include<stdio.h>
int main()
{
  int a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p;
  printf("请输入任意1-16的值: \n");
  scanf("%d %d %d %d %d %d %d %d %d %d %d %d %d %d      %d %d \n",&a,&b,&c,&d,&e,&f,&g,&h,&i,&j,&k,&l,&m,&n,&o,&p);
  printf("%2d %2d %2d %2d \n",a,b,c,d);
  printf("%2d %2d %2d %2d \n",e,f,g,h);
  printf("%2d %2d %2d %2d \n",i,j,k,l);
  printf("%2d %2d %2d %2d \n",m,n,o,p);
  
  return 0；
}
第一个图是作业，第二个图为什么要先输入4个数值才会显示4x4的方阵，

谢谢指点！解决了。