C＃華氏和攝氏溫度：添加輸入以回答

Question

我已經為一個小程序（攝氏溫度和反之亦然）編寫了一些C＃代碼，但是我想在答案中加上輸入的數字。

我想讀取/顯示結果：178華氏度是81攝氏度。

碼。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace FahrentheitTest
{
    class Program
    {
        static void Main(string[] args)
        {
            //conversion from Fahrenheit to Celsius
            Console.WriteLine("Input temperature value to view Fahrenheit to  Celsius: ");
            int fah = int.Parse(Console.ReadLine());
            Console.WriteLine();

            //conservsion formula from F to C
            int FtoC = ((fah - 32) * 5) / 9;
            Console.WriteLine("Degrees Fahrenheit is {0} Celsius degrees. ", FtoC);
            Console.WriteLine();

            //conversion from Celsius to fahrenheit
            Console.WriteLine("Input temperature value to view Celsius to Fahrenheit: ");
            int cel = int.Parse(Console.ReadLine());
            Console.WriteLine();

            //conversion formula from C to F
            int CtoF = ((cel * 9) /5) + 32;
            Console.WriteLine("Degrees Celsius is {0} degrees Fahrenheit. ", CtoF);
            Console.WriteLine();
        }
    }
}

Answer 1

修改格式字符串以包括兩個格式值，一個用於輸入，一個用於結果：

Console.WriteLine("{0} Degrees Fahrenheit is {1} Celsius degrees. ", fah, FtoC);

Console.WriteLine("{0} Degrees Celsius is {1} degrees Fahrenheit. ", cel, CtoF);

Answer 2

您似乎已經想出了如何使用一種格式的占位符打印字符串：

Console.WriteLine("a is equal to {0}.", a);

您可以通過添加另一個占位符和變量來將其擴展為兩個：

Console.WriteLine("a is equal to {0} and b is equal to {1}.", a, b);

Answer 3

我想你差不多了。

Console.WriteLine("{0} Degrees Fahrenheit is {1} Celsius degrees.", fah, FtoC);

您不只是將輸入變量也輸入到同一Console.WriteLine中，而是將其作為第一個參數嗎？

Answer 4

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace FahrentheitTest
{
class Program
{
    static void Main(string[] args)
    {
        //conversion from Fahrenheit to Celsius
        Console.WriteLine("Input temperature value to view Fahrenheit to  Celsius: ");
        int fah = int.Parse(Console.ReadLine());
        Console.WriteLine();

        //conservsion formula from F to C
        int FtoC = ((fah - 32) * 5) / 9;
        Console.WriteLine("{0} Degrees Fahrenheit is {1} Celsius degrees. ", fah, FtoC);
        Console.WriteLine();

        //conversion from Celsius to fahrenheit
        Console.WriteLine("Input temperature value to view Celsius to Fahrenheit: ");
        int cel = int.Parse(Console.ReadLine());
        Console.WriteLine();

        //conversion formula from C to F
        int CtoF = ((cel * 9) /5) + 32;
        Console.WriteLine("{0} Degrees Celsius is {1} degrees Fahrenheit. " , cel, CtoF);
           Console.WriteLine();
       }
   }
}

Answer 5

我建議您立即學習如何封裝您的規則/邏輯。

您的“緊急需求”答案在ToString實現中。

namespace Weather
{
    using System;

    public class CeliusToFahrentheit
    {

        public int? Celius { get; set; }
        public int? Fahrentheit
        {
            get
            {
                int? returnValue = null;

                if (this.Celius.HasValue)
                {
                    returnValue = ((this.Celius * 9) / 5) + 32;
                }

                return returnValue;
            }
        }

        public override string ToString()
        {
            string returnValue = string.Empty;

            if (this.Celius.HasValue)
            {
                returnValue = string.Format("{0} degrees celsius is {1} fahrenheit degrees.", this.Celius.Value, this.Fahrentheit.Value);
            }
            return returnValue;
        }
    }
}

和調用代碼

    static void Main(string[] args)
    {

        try
        {

            CeliusToFahrentheit ctf = new CeliusToFahrentheit();
            ctf.Celius = 100;
            Console.WriteLine(ctf.Fahrentheit);
            string mesg = ctf.ToString();
            Console.WriteLine(mesg);