Example3_5

public class Example3_5{
 public static void main(String args[]){
  double sum=0,item=1;
  int i=1;
  while(i<=1000){
   sum=sum+item;
   i++;
   item=item*(1.0/i);
  }
  sum=sum+1;
  System.out.println("e="+sum);
  sum=0;
  i=1;
  item=1;
  do{
   sum=sum+item;
   i++;
   item=item*(1.0/i);
  }
  while(i<=1000);
  sum=sum+1;
  System.out.println("e="+sum);
 }
}

转载于:https://www.cnblogs.com/guoying/archive/2013/03/31/2991317.html