奇数偶数和-while()结构

#include <stdio.h>
#include <math.h>//fabs
#include <stdlib.h>//abs

int main() {
    int i = 1, sum_odd = 0, sum_even = 0;
    while (i <= 20) {
        if (i % 2 == 0)
            sum_even = sum_even + i;
        else
            sum_odd = sum_odd + i;
        i++;
    }
    printf("偶数和%d，奇数和%d", sum_even, sum_odd);
    return 0;
}