5-2 使用函数求奇数和

//使用函数求奇数和#include<stdio.h>int even(int n);int main(int argc,char const *argv[]){int n;int sum=0;printf("请输入一批正整数(以零或负数为结束标志):");while(1){scanf("%d",&n);if(n<=0)break;if(even(n)==0){sum+=n;}}printf("奇数和为:%d\n",sum);return 0;} int even(int n){int ret;if(n%2)ret=0;else ret=1;return ret;}