程序代码：

#include <stdio.h>
int main()
{
    int power(int x,int y);
    int x,y;

        printf("请输入底数与指数分别是：\n");

        scanf("%d %d",&x,&y);

        printf("sum = %d\n",power(x,y));

    return 0;
}

int power(int x,int y)
{
    int sum = 1;
    int i;

    for(i = 0;i < y;i++)
        sum *= x;

    return sum;
}