172.c

C++游戏开发书籍的实例非常适合初学但又又想往游戏开发方面发展的人学习哦

#include <conio.h>
#include <stdio.h>
void countvalue(int *a,int *n)
{
	int I;
	*n=0;
	for(I=1;I<=1000;I++)
		if(I%7==0&&I%11)
		{
			*a=I;
			*n=*n+1;
			a++;
		}
		else if(I%7&&I%11==0)
		{
			*a=I;
			*n=*n+1;
			a++;
		}
}
void PressKeyToQuit()
{
	printf("\n Press any key to quit...");
	getch();
	return;
}
main()
{ 
	int aa[1000],n,k;
	clrscr();
	puts(" This program is to find numbers\n which can be divided exactly by 7 or 11,\n but can not be divided exactly both by 7 and 11.");
	puts(" These numbers less than 1000 are:");
	countvalue(aa,&n);
	for(k=0;k<n;k++)
		if((k+1)%10==0) 
			printf("\n");
		else 
			printf("%5d",aa[k]);
	writeDAT();
	PressKeyToQuit();
}
writeDAT()
{ 
	int aa[1000],n,k;
	FILE *fp;
	fp=fopen("out172.dat","w");
	countvalue(aa,&n);
	for(k=0;k<n;k++)
		if((k+1)%10==0) 
			fprintf(fp,"\n");
		else
			fprintf(fp,"%5d",aa[k]);
	fprintf(fp,"\n");
	fclose(fp);
}