sa4106.c

来自「141个C语言经典小程序」· C语言 代码 · 共 37 行

#include <stdio.h>

void header();
void square(int number);
void ending();

int sum; /*  全局变量 */
main()
{
   int index;

   header();      
   for (index = 1;index <= 7;index++)
     square(index); 
   ending();        /*结束*/
}

void header() 
{
   sum = 0;     /* 初始化变量"sum" */
   printf("This is the header for the square program\n\n");
}

void square(int number)  
{
   int numsq;

   numsq = number * number;  
   sum += numsq;
   printf("The square of %d is %d\n",number,numsq);
}

void ending()   
{
   printf("\nThe sum of the squares is %d\n",sum);
}