第1个回答 2012-04-08
package test;
import java.util.Scanner;
public class Express {
public static void main(String[] args) {
System.out.println("请输入n的值");
Scanner scan=new Scanner(System.in);
int n=scan.nextInt();
System.out.print("输出的结果是:");
System.out.println(getResult(n));
}
public static double getResult(int n){
double sum=0;
for(double i=1.0;i<=n;i++){
sum=sum+1/i;
}
return sum;
}
}本回答被提问者采纳