factorial: 1922d1732f015c2b0dc1859ca7e81f8.png

    1. #include <stdio.h>
    3. int factorial(int n) {
    4.     printf("%d: addr(n) = %u\n", n, &n);
    6.     if (n == 1) {
    7.         return 1;
    8.     }
    10.     return n * factorial(n - 1);
    11. }
    13. int main() {
    14.     int n = 3;
    16.     printf("factorial(%d) = %d", n, factorial(n));
    18.     return 0;
    19. }

    代码块：阶乘
    0a9086101d476193a68ad4a989e346e.png
    阶乘运行结果