练习2-17生成3的乘方表#include<stdio.h>#include<math.h>int main(){ int n,i; printf("请输入一个非负整数:\n"); scanf("%d",&n); for(i=0;i<=n; i++) { int t= pow(3,i); printf("pow(3,%d)=%d\n",i,t); } return 0;}