打印菱形函数

#include <stdio.h>
#include <stdlib.h>
void printSin(int* p)
{
	int rows = *p;
	//上半部分
	for (int i = 1; i <= rows; ++i)
	{
		for (int j = 1; j < rows - i + 1; ++j)
		{
			printf(" ");
		}
		for (int j = 1; j < 2 * i; ++j)
		{
			printf("*");
		}
		printf("\n");
	}
	//下半部分
	for (int i = 1; i <= rows - 1; i++)
	{
		for (int j = 1; j < i + 1; ++j)
		{
			printf(" ");
		}
		for (int j = 1; j < 2 * (rows - 1 - i) + 2; ++j)//配凑法
		{
			printf("*");
		}
		printf("\n");
	}
}
int main()
{
	int chioce = 0;
	int* input = &chioce;
	do
	{
		int num = 0;
		int* p = &num;
		int** per = &p;
		printf("你想打印几行？\n");
		scanf_s("%d", *per);
		printf("输入1开始生成图像\n");
		scanf_s("%d", input);
		while (getchar() != '\n');
		switch (*input)
		{
		case 1:
		{
			printSin(*per);
		}
		break;
		case 0:
		{
			printf("已退出\n");
			exit(-100);
		}
		}
	} while (*input);
	return 0;
}