Java 代码

import java.util.Scanner;

public class Main
{
    public static void main(String[] args)
    {
        Scanner cin = new Scanner(System.in);

        int count = 0;

        for (int i = 0; i < 6 ; i++)
        {
            if (cin.nextDouble() > 0)
                count += 1;
        }

        System.out.println( count + " positive numbers");
    }
}