C# 从字符串中转换 Int

Question

我正在努力了解如何才能拥有它

string rock = 1 for inputting
string paper = 2 for input
string scissors = 3 for input

所以我可以使用 int 1,2 和 3 打印字符串作为输出。

基本上，控制台应用程序有 3 个输入选项：1(rock)、2(paper) 或 3(scissors) 并且控制台需要从 1,2 或 3 中生成一个随机数，并确定您的输入是否超过计算机随机数。

 string rock = (int)1;
        string paper;
        string scissors;
        int input;         
        Random random = new Random();
        int RandomNumber = random.Next(1,4);
        bool i = true;

        Console.WriteLine("-- Weapons Menu --");
        Console.WriteLine("-------------------");
        Console.WriteLine("1] Rock");
        Console.WriteLine("2] Paper");
        Console.WriteLine("3] Scissors");
        Console.WriteLine("Choose Your Weapon [1, 2 or 3]:");

        input = int.Parse(Console.ReadLine());

        if (input == RandomNumber ) 
            Console.WriteLine("You Tied The Computer This Round");
            Console.WriteLine("Player Chose ")

任何帮助都将非常有用，谢谢。我尝试转换 int 但我不能。

Answer 1

使用 Int32.TryParse(Console.ReadLine(), out input); 将字符串转换为整数。
要将 Int 转换为字符串，您必须使用 input.ToString();
那么你可以使用Dictionary<int, string>来实现目标。

您的代码中的问题出在这一行：string rock = (int)1; 相反，你应该给 string rock = "1";

Answer 2

使用 Dictionary<int, string>:

var choices = new Dictionary<int, string> { {1,"Rock"}, {2,"Paper"}, {3,"Scissors"} };

然后访问正确的元素：

Console.WriteLine("Player Chose {0}", choices[input]);

您需要对此进行一些验证，以确保您不会尝试访问不存在的元素，或者用户不会输入非数字值。

Answer 3

        var random = new Random();
        while (true)
        {
            int RandomNumber = random.Next(1, 4);
            var userinput = Console.ReadLine();
            if (Enumerable.Range(1, 3).Contains(Convert.ToInt16(userinput)))
                if (userinput == RandomNumber.ToString())
                    Console.WriteLine("Tied");
                else
                    Console.WriteLine("Check and see who won!");
            else
                Console.WriteLine("Try Again!");
        }

Answer 4

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

namespace RockPaperScissors

{
    class Program
    {
        static void Main(string[] args)
        {

            var choices = new Dictionary<int, string> { { 1, "Rock" }, { 2, "Paper" }, { 3, "Scissors" } };
            int input;
            var randomly = new Dictionary<int, string> { { 1, "Rock" }, { 2, "Paper" }, { 3, "Scissors" } };

            Random random = new Random();
            int RandomNumber = random.Next(1, 4);
            int Ties;
            int Wins;
            int Losses;



            do
            {
                //Counter
                Wins = 0;
                Losses = 0;
                Ties = 0;
                Console.WriteLine("-- Weapons Menu --");
                Console.WriteLine("-------------------");
                Console.WriteLine("1] Rock");
                Console.WriteLine("2] Paper");
                Console.WriteLine("3] Scissors");
                Console.WriteLine("Choose Your Weapon [1, 2 or 3]:");
                input = int.Parse(Console.ReadLine());
                if (input == RandomNumber)
                    Console.WriteLine("You Tied The Computer");
                Ties++;
                //Winning 
                if (input == 1 && RandomNumber == 3)

                Console.WriteLine("You Beat The Computer :)");
                Wins++;

                if (input == 2 && RandomNumber == 1)

                Console.WriteLine("You Beat The Computer :)");
                Wins++;

                if (input == 3 && RandomNumber == 2)

                Console.WriteLine("You Beat The Computer :)");
                Wins++;


                //Lossing 
                if (input == 1 && RandomNumber == 2)

                    Console.WriteLine("Sorry You Lost To The Computer :(");
                Losses++;

                if (input == 2 && RandomNumber == 3)

                Console.WriteLine("You Beat The Computer :)");
                Losses++;

                if (input == 3 && RandomNumber == 1)

                Console.WriteLine("You Beat The Computer :)");
                Losses++;










                Console.WriteLine(string.Format("Player Chose {0} : Computer Chose {1}", choices[input], randomly[RandomNumber]));
                Console.WriteLine();
                Console.WriteLine("<Press Any Key To Continue...>");
                Console.WriteLine();



                Console.WriteLine("Player Wins      Computer Wins");
                Console.WriteLine("----------       --------------");
                Console.WriteLine(" {0}                {1}", Wins, Losses);




                Console.ReadKey();
                }
                while (input != 3) ;
                Console.WriteLine("Thanks for playing!");
            }enter code here
    }
    }



       STILL CANNOT SHOW THE COUNTER WHY

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