using System;
using System.Collections.Generic;
using System.Text;
using System.Collections;

namespace Example3_15 {
    class Program {
        static void Main(string[] args) {
            //利用Console.ReadLine方法從鍵盤讀入字符并轉(zhuǎn)換為double型數(shù)
            Console.WriteLine("請輸入一個數(shù)：");
            double myDouble1 = Convert.ToDouble(Console.ReadLine());

            Console.WriteLine("請再輸入一個數(shù)：");
            double myDouble2 = Convert.ToDouble(Console.ReadLine());
            double myDouble3;

            if (myDouble1 < myDouble2) {
                //當myDouble1小于myDouble2時求myDouble2與myDouble1的差
                myDouble3 = myDouble2 - myDouble1;
                Console.WriteLine("myDouble2減myDouble1的結(jié)果是 {0}", myDouble3);
            } else {
                //當myDouble1大于myDouble2時求myDouble2與myDouble1的和
                myDouble3 = myDouble1 + myDouble2;
                Console.WriteLine("myDouble2加myDouble1的結(jié)果是 {0}", myDouble3);
            }

            Console.ReadLine();
        }
    }
}