2.3-5.txt

介绍C程设计的一典型案例：例如编写一些小游戏

#include<stdio.h>
int main(void)
{
	int i,j,m,n;
	double sum,result1,result2;
	result1=1;
	result2=1;
	printf("Enter m:");
	scanf("%d",&m);
	printf("Enter n:");
	scanf("%d",&n);
	if(m>=0 && n>=0)
	{
		for(i=1;i<=m;i++)
		{
			result1=result1*i;
		}
		for(j=1;j<=n;j++)
		{
			result2=result2*j;
		}
		sum=result1+result2;
		printf("%d!+%d!=%.lf\n",m,n,sum);
	}
	else
	{
		printf("The number you enter is fault!\n");
	}
	return 0;
}