20160408_CSharp_Classwork04

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace Classwork04
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click_1(object sender, EventArgs e)
        {
            // 表示還清欠款需求月數
            int month = 0;
            // 表示已還清之金額
            int backCoins = 0;
            // 表示未還清之金額
            int unGive = 10000;

            while (unGive >= 2000)
            {
                unGive = (int)Math.Ceiling(unGive * 1.015) - 2000;
                backCoins += 2000;
                month++;
            }

            label1.Text = "還清月數：" + (++month).ToString();
            label2.Text = "總款金額：" + (backCoins + unGive).ToString();
        }
    }
}