ch25-7.c

C语言程序设计上机指导与练习 冶金工业出版社 刘怀亮

#include <stdio.h>
int jsValue(int t)
{ 
   int f0=0,f1=1,fn;
   fn=f0+f1;
   while(fn<=t)
   { f0=f1;
      f1=fn;
      fn=f0+f1;
   }
   return fn;
}

void writeDat()
{
   FILE  *out;
   int i,s;
   out=fopen("out.dat","w");
   for(i=0;i<50;i++)
   {
      s=jsValue(i);
      printf("%d\n",s);
      fprintf(out,"%d\n",s);
   }
   fclose(out);
}

void main()
{
   int n;
   n=1000;
   printf("n=%d,f=%d\n",n,jsValue(n));
   writeDat();
}