摘要：
package aila2; import java.util.Scanner;public class sum { public static void main(String[] args) { double sum=0; Scanner input = new Scanner(System.i 阅读全文
摘要：
package com.aila; public class La { public int id; public String name; public int age; public String city; public void printX() { System.out.println(" 阅读全文