我正在做一个控制台数学测试，根据用户选择的难度级别，询问一些随机的加，减，乘，除，乘方和平方根问题！
这是我的代码：
using System;
using System.Collections.Generic;
namespace mathstester
{
class Program
{
public enum UserDifficulty
{
Easy,
Normal,
Hard
}
public enum MathOperation
{
Addition = 1,
Subtraction = 2,
Multiplication = 3,
Division = 4,
Power = 5,
SquareRoot = 6
}
public static (int operationMin, int operationMax) GetPossibleOperationsByDifficulty(UserDifficulty userDifficulty)
{
switch(userDifficulty)
{
case UserDifficulty.Easy:
return (1, 4);
case UserDifficulty.Normal:
return (1, 5);
case UserDifficulty.Hard:
return (3, 7);
default:
throw new Exception();
}
}
public static (string message, double correctAnswer) GetMathsEquation(MathOperation mathOperation, UserDifficulty userDifficulty)
{
int number1;
int number2;
Random randomNumber = new Random();
switch (mathOperation)
{
case MathOperation.Addition:
number1 = randomNumber.Next(1000);
number2 = randomNumber.Next(1000);
return ($"{number1} + {number2}", number1 + number2);
case MathOperation.Subtraction:
number1 = randomNumber.Next(1000);
number2 = randomNumber.Next(1000);
return ($"{number1} - {number2}", number1 - number2);
case MathOperation.Multiplication:
number1 = userDifficulty == UserDifficulty.Easy ? randomNumber.Next(13) : randomNumber.Next(1000);
number2 = userDifficulty == UserDifficulty.Easy ? randomNumber.Next(13) : randomNumber.Next(1000);
return ($"{number1} * {number2}", number1 * number2);
case MathOperation.Division:
number1 = randomNumber.Next(10000);
number2 = randomNumber.Next(1000);
return ($"{number1} / {number2}", number1 / (double)number2);
case MathOperation.Power:
number1 = randomNumber.Next(20);
number2 = randomNumber.Next(5);
return ($"{number1} ^ {number2}", Math.Pow(number1, number2));
case MathOperation.SquareRoot:
number1 = randomNumber.Next(1000);
return ($"√{number1}", Math.Sqrt(number1));
default:
throw new Exception();
}
}
public class OperationQuestionScore
{
public int AdditionQuestion { get; private set; }
public int AdditionScore { get; private set; }
public int SubtractionQuestion { get; private set; }
public int SubtractionScore { get; private set; }
public int MultiplicationQuestion { get; private set; }
public int MultiplicationScore { get; private set; }
public int DivisionQuestion { get; private set; }
public int DivisionScore { get; private set; }
public int PowerQuestion { get; private set; }
public int PowerScore { get; private set; }
public int SquareRootQuestion { get; private set; }
public int SquareRootScore { get; private set; }
public int TotalScore { get; private set; }
public void Increment(MathOperation mathOperation, bool isCorrect)
{
if (isCorrect == true)
{
switch (mathOperation)
{
case MathOperation.Addition:
AdditionQuestion++;
AdditionScore++;
break;
case MathOperation.Subtraction:
SubtractionQuestion++;
SubtractionScore++;
break;
case MathOperation.Multiplication:
MultiplicationQuestion++;
MultiplicationScore++;
break;
case MathOperation.Division:
DivisionQuestion++;
DivisionScore++;
break;
case MathOperation.Power:
PowerQuestion++;
PowerScore++;
break;
case MathOperation.SquareRoot:
SquareRootQuestion++;
SquareRootScore++;
break;
}
TotalScore++;
}
else
{
switch (mathOperation)
{
case MathOperation.Addition:
AdditionQuestion++;
break;
case MathOperation.Subtraction:
SubtractionQuestion++;
break;
case MathOperation.Multiplication:
MultiplicationQuestion++;
break;
case MathOperation.Division:
DivisionQuestion++;
break;
case MathOperation.Power:
PowerQuestion++;
break;
case MathOperation.SquareRoot:
SquareRootQuestion++;
break;
}
}
}
}
public static OperationQuestionScore RunTest(int numberOfQuestionsLeft, UserDifficulty userDifficulty)
{
Random random = new Random();
var (operationMin, operationMax) = GetPossibleOperationsByDifficulty(userDifficulty);
var score = new OperationQuestionScore();
while (numberOfQuestionsLeft > 0)
{
int mathRandomOperation = random.Next(operationMin, operationMax);
MathOperation mathOperation = (MathOperation)mathRandomOperation;
var (message, correctAnswer) = GetMathsEquation(mathOperation, userDifficulty);
if (mathRandomOperation == 4 || mathRandomOperation == 6)
{
Console.Write($"To the nearest integer, What is {message} =");
}
else
{
Console.Write($"What is {message} =");
}
double userAnswer = Convert.ToDouble(Console.ReadLine());
if (Math.Round(correctAnswer) == userAnswer)
{
Console.WriteLine("Well Done!");
score.Increment(mathOperation, true);
}
else
{
Console.WriteLine("Your answer is incorrect!");
score.Increment(mathOperation, false);
}
numberOfQuestionsLeft--;
}
return score;
}
public static void Main(string[] args)
{
Dictionary<string, UserDifficulty> difficultyDictionary = new Dictionary<string, UserDifficulty>();
difficultyDictionary.Add("E", UserDifficulty.Easy);
difficultyDictionary.Add("N", UserDifficulty.Normal);
difficultyDictionary.Add("H", UserDifficulty.Hard);
string userInputDifficulty;
do
{
Console.WriteLine("What difficulty level would you like to do! Please type E for Easy, N for Normal and H for hard");
userInputDifficulty = Console.ReadLine().ToUpper();
} while (userInputDifficulty != "E" && userInputDifficulty != "N" && userInputDifficulty != "H");
UserDifficulty userDifficulty = difficultyDictionary[userInputDifficulty];
int numberOfQuestions;
do
{
Console.WriteLine("How many questions would you like to answer? Please type a number divisible by 10!");
int.TryParse(Console.ReadLine(), out numberOfQuestions);
} while (numberOfQuestions % 10 != 0);
var score = RunTest(numberOfQuestions, userDifficulty);
Console.WriteLine($"Total score:{score.TotalScore} of {numberOfQuestions}");
if (userDifficulty == UserDifficulty.Easy)
{
Console.WriteLine($"Addition score: {score.AdditionScore} of {score.AdditionQuestion}");
Console.WriteLine($"Subtraction score: {score.SubtractionScore} of {score.SubtractionQuestion}");
Console.WriteLine($"Multiplication score: {score.MultiplicationScore} of {score.MultiplicationQuestion}");
}
else if (userDifficulty == UserDifficulty.Normal)
{
Console.WriteLine($"Addition score: {score.AdditionScore} of {score.AdditionQuestion}");
Console.WriteLine($"Subtraction score: {score.SubtractionScore} of {score.SubtractionQuestion}");
Console.WriteLine($"Multiplication score: {score.MultiplicationScore} of {score.MultiplicationQuestion}");
Console.WriteLine($"Division score: {score.DivisionScore} of {score.DivisionQuestion}");
}
else if (userDifficulty == UserDifficulty.Hard)
{
Console.WriteLine($"Multipication score: {score.MultiplicationScore} of {score.MultiplicationQuestion}");
Console.WriteLine($"Division score: {score.DivisionScore} of {score.DivisionQuestion}");
Console.WriteLine($"Power score: {score.PowerScore} of {score.PowerQuestion}");
Console.WriteLine($"Squareroot score: {score.SquareRootScore} of {score.SquareRootQuestion}");
}
}
}
}
但是，我试图通过在下一次他运行代码时将难度自动设置为较难或较容易的级别来使代码更高级，具体取决于他上次测试获得的分数。例如，如果他选择“普通”级别并获得1/10的分数，那么下次运行代码时，他应该自动进行“简单”级别。
但是我不知道从哪里开始。
如果有人可以告诉我我将如何开始，那将真的有帮助！
顺便说一句，如果您能想到更好的标题，请对其进行编辑！
有很多方法可以存储程序数据，例如：
一种相当简单的方法是使用Visual Studio中内置的application settings。转到项目的属性页面和设置视图。添加一个新设置，为其命名（如Difficulty），int类型和用户范围。您将需要将其强制转换为枚举类型，或者从您的枚举类型强制转换，除非您想显式地将其添加为类型。
var storedSetting = (UserDifficulty)Properties.Settings.Default.Difficulty;
Properties.Settings.Default.Difficulty= (int)UserDifficulty.Easy;
Properties.Settings.Default.Save();