[求助]大家来帮帮我这个初学的吧～～

洋洋

#include "stdio.h"
unsigned long Factorial(unsigned int n);
double e=0;
int i=0;
int main ()
{
while (Factorial(i)<=1000000)
{
  e=e+(1.00/Factorial(i));
  i++;
}
printf("%f",e);
return 0;
}
unsigned long Factorial(unsigned int n)
{
   if (n>0)
   {
     return (unsigned long)(n*Factorial(n-1));
   }
   return 1;
}
汗颜啊 C全都忘光了