程序代码：

#include <stdio.h>

int sum(int count, ...) {
    int total = 0;
    int * p = &count, i = 0;
    while(i < count) {
        total += *(++p);
        i++;
    }
    return total;
}

int main(void) {
    printf("%d\n", sum(10, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10));
    return 0;
}