打印杨辉三角.c

#define _CRT_SECURE_NO_WARNINGS 1
#include <stdio.h>
int main()
{
	int i, j, n = 0, a[17][17] = { 0, 1 };
	while (n<1 || n>16)
	{
		printf("ÊäÈëÑî»ÔÈý½ÇÐεÄÐÐÊý:");
		scanf("%d", &n);
	}
	for (i = 1; i <= n; i++)
	for (j = 1; j <= i; j++)
		a[i][j] = a[i - 1][j - 1] + a[i - 1][j];
	for (i = 1; i <= n; i++)
	{
		for (j = 1; j <= i; j++) printf("%5d", a[i][j]);
		printf("\n");
	}
	system("pause");
	return 0;
}