Question

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

enter code here`namespace fuel_consumption {
class Program {
    // Program Reset & exit method at the end of program
    static bool DoItAgain()
    {
        bool startAgain = true;
        string reply = "";

        Console.Write("Start Over? (Y or N):  ");
        reply = Console.ReadLine();
        reply = reply.ToUpper();
        if (reply != "Y") 
        {
            startAgain = false;
        }
        return startAgain;
    }//End DoItAgain method

   //Startup Screen method
    static void WelcomeMessage() {
        Console.WriteLine("\n\n\tWelcome to the Fuel Consumption Calculator\n\n\t");

    }// End startup Screen method

    //Begin user input method for Number of Litres
    static int InputLitres() {
        string userInput = "";
        int selection = 0;
        int minLitres = 20;
        bool inValid = true;

        //User Input Message
        while (inValid) {
            Console.Write("\nEnter the amount of litres consumed:  ");

程序一遍又一遍地问这个问题，大约是5次。

            userInput = Console.ReadLine();
            if (int.TryParse(userInput, out selection))
                if (selection < minLitres) {
                    // Deliver Error Message to User
                    Console.Write("\nPlease Enter an amount 20 litres or above\n\n Please Try Again:\n");

                }
                else {
                    inValid = false;
                }
        }
        //return the value entered by the user
        return selection;

    }//end InputLitres

    //Begin InputKM method

    static int InputKM() {
        //set user input varibles
        string userInput = "";
        int selection = 0;
        int inputLitres = InputLitres();
        int minKms = 8 * inputLitres;
        bool inValid = true;
        while (inValid) {
            Console.Write("\nEnter Kilometres Travelled: ");

然后它会问这个问题几次

            userInput = Console.ReadLine();
            if (int.TryParse(userInput, out selection))
                if (selection < minKms) {
                    //Deliver Error Message to user and redirect back to user input of kms
                    Console.WriteLine("\n Minimum Kms is {0:f2} Kilometres, Please Enter a value of {0:f2} or higher", minKms);
                }
                else {
                    inValid = false;
                }
        }
        //return the KM Value
        return selection;

    }//End Input Kms

    static double consumptionCalculation() {
        int litres;
        int kms;
        double litresFormula;
        double formulaResult;


        //Define Base Varibles
        formulaResult = 0.0;
        litresFormula = 0.0;

        litres = InputLitres();

        kms = InputKM();

        //Calculate fuel consumption in litres per 100km

        litresFormula = (double)litres * 100;
        formulaResult = (double)litresFormula / kms;

        {
            //Return the result value
            return formulaResult;
        }
    }

    //Print results method

    static void PrintResults() {
        double kmResult = consumptionCalculation();

        Console.WriteLine("\n\n\tYour Fuel Consumption is {0} Litres per 100 Kilometres", kmResult);

    }

    //Start Program Loop Method
    static void ProgramLoop() {
        bool startAgain = true;
        //Loop through each user Input Method


        InputLitres();
        InputKM();
        consumptionCalculation();
        PrintResults();


        startAgain = DoItAgain();
    }



    static void Main(string[] args) {


        WelcomeMessage();
        ProgramLoop();

    }
}

}

有谁能让我知道我哪里出错了？我只需要一次问这些问题，返回价值。请把它简单化，因为我是新手。感谢

Answer 1

这是你需要做的事情。

void Main()
{
        WelcomeMessage();
        ProgramLoop();
}

static void ProgramLoop()
{
    bool startAgain = true;

    while (startAgain)
    {
        int litres = InputLitres();
        int kms = InputKM(litres);
        double consumption = consumptionCalculation(litres, kms);
        PrintResults(consumption);
        startAgain = DoItAgain();
    }
}

static bool DoItAgain()
{
    Console.Write("Start Over? (Y or N):  ");
    string reply = Console.ReadLine();
    reply = reply.ToUpper();
    return reply.ToUpper() == "Y";
}

static void WelcomeMessage()
{
    Console.WriteLine("\n\n\tWelcome to the Fuel Consumption Calculator\n\n\t");
}

static int InputLitres()
{
    int selection = -1;
    int minLitres = 20;
    bool invalid = true;

    while (invalid)
    {
        Console.Write("\nEnter the amount of litres consumed:  ");
        if (int.TryParse(Console.ReadLine(), out selection))
        {
            invalid = selection < minLitres;
            if (invalid)
            {
                Console.Write("\nPlease Enter an amount 20 litres or above\n\n Please Try Again:\n");
            }
        }
    }
    return selection;
}

static int InputKM(int litres)
{
    int selection = -1;
    int minKms = 8 * litres;
    bool invalid = true;

    while (invalid)
    {
        Console.Write("\nEnter Kilometres Travelled: ");
        if (int.TryParse(Console.ReadLine(), out selection))
        {
            invalid = selection < minKms;
            if (invalid)
            {
                Console.WriteLine("\nMinimum Kms is {0:f2} Kilometres, Please Enter a value of {0:f2} or higher", minKms);
            }
        }
    }
    return selection;
}

static double consumptionCalculation(int litres, int kms)
{
    return (double)litres * 100.0 / (double)kms;
}

static void PrintResults(double consumption)
{
    Console.WriteLine("\n\n\tYour Fuel Consumption is {0} Litres per 100 Kilometres", consumption);
}

C＃程序不断询问用户输入的问题

1 个答案: