c语言计算123....前N项和代码
是求等差级数1+2+...+n前n项的和吗,C 语言代码如下:
#include <stdio.h>
int main()
{
int n;
int i;
int sum = 0;
printf ("Enter an integer n= ");
scanf ("%d",&n);
for (i = 1; i <= n; i++)
sum += i;
printf ("sum = %d ",sum);
return 0;
}
程序的运行结果:
热门标签: