以下程序输出结果是#include f(int b[], int n){ int i, r = 1; for (i = 0; i <= n; i++) r = r*b[i]; return r;}int main(){ int x, a[] = {2,3,4,5,6,7,8,9}; x = f(a,3); printf("%d\n", x); return 0;}