41 函数封装练习

1，打印金字塔封装

 1 #include<stdio.h>
 2 void print_tower(int n) {
 3     for (int i = 1;i <= n;i++) {
 4         for (int k = 1;k <= (n - i);k++) {
 5             printf(" ");
 6         }
 7         for (int j = 1;j <= (2 * i - 1);j++) {
 8             if (j == 1 || j == 2 * i - 1 || i == n) {
 9                 printf("*");
10             }
11             else {
12                 printf(" ");
13             }
14         }
15         printf("
");
16     }
17 }
18 void main() {
19     int num = 0;
20     printf("请输入层数：");
21     scanf("%d", &num);
22     print_tower(num);
23     
24 }

2，打印九九乘法表封装

 1 #include<stido.h>
 2 void print99(int n) {
 3     for (int i = 1;i <= n;i++) {
 4         for (int j = 1;j <= i;j++) {
 5             printf("%d*%d=%d  ", j, i, i * j);
 6         }
 7         printf("
");
 8     }
 9 }
10 void main() {
11     int num = 0;
12     printf("请输入一个数字：");
13     scanf("%d", &num);
14     print99(num);
15 }