c6_10.c

适合于初学者的C程序

/* Note:Your choice is C IDE */
#include "stdio.h"
void main()
{
	int day,x1,x2;
	day=9;
	x2=1;
	while(day>0)
	{
		x1=(x2+1)*2;
		x2=x1;
		day--;
	}
	printf("total=%d",x1);
    
}