在c#中实现任何状态机的通用有限状态机。并检查用户输入的任何下一状态

using System;

// 定义状态枚举
enum State
{
    State1,
    State2,
    State3
}

// 定义状态机类
class StateMachine
{
    private State currentState;

    public StateMachine()
    {
        currentState = State.State1; // 设置初始状态
    }

    // 状态转换方法
    public void Transition(State nextState)
    {
        // 执行状态转换动作
        Console.WriteLine($"Transition from {currentState} to {nextState}");

        // 更新当前状态
        currentState = nextState;
    }

    // 用户输入检查方法
    public void CheckUserInput(string userInput)
    {
        // 根据用户输入判断下一个状态
        switch (currentState)
        {
            case State.State1:
                if (userInput == "A")
                {
                    Transition(State.State2);
                }
                else if (userInput == "B")
                {
                    Transition(State.State3);
                }
                else
                {
                    Console.WriteLine("Invalid input");
                }
                break;
            case State.State2:
                if (userInput == "C")
                {
                    Transition(State.State1);
                }
                else
                {
                    Console.WriteLine("Invalid input");
                }
                break;
            case State.State3:
                if (userInput == "D")
                {
                    Transition(State.State1);
                }
                else
                {
                    Console.WriteLine("Invalid input");
                }
                break;
        }
    }
}

class Program
{
    static void Main(string[] args)
    {
        StateMachine stateMachine = new StateMachine();

        // 模拟用户输入
        stateMachine.CheckUserInput("A");
        stateMachine.CheckUserInput("C");
        stateMachine.CheckUserInput("D");
        stateMachine.CheckUserInput("B");

        Console.ReadLine();
    }
}