问每次我按下玩家选择的数字时，它都会重复"computer chose __“，并且不显示结果。我在这里做错了什么？
EN

Stack Overflow用户

提问于 2017-04-13 21:51:54

回答 2查看 43关注 0票数 1

/*简单的石头剪刀游戏，询问用户是否想玩，显示计算机选择，并显示结果(像法官一样)，没有高级技术。如果用户同意再次玩游戏，我还需要让游戏再次循环。一般来说，我是一个非常非常新的编程新手，只是很难掌握基础知识。*/

using System;

class RockPaperScissors
{
    public static void Main(string[] args)
    {
        Console.Write("Do you want to play rock, paper, scissors? ");
        string playerChoice = Console.ReadLine();
        playerChoice = playerChoice.ToUpper();


        Random r = new Random();
        int computerChoice = r.Next(1, 4);

        do
        {

            if (computerChoice == 1)
            {
                Console.WriteLine("Computer chose Rock");
                Console.Write("Player choice: type 1, 2, or 3 (1=rock 2=paper 
                3=scissors): ");
                Console.ReadKey();

            //beginning of switch
            switch (playerChoice)
                {
                    case "1":
                        Console.WriteLine("/nIt is a tie!");
                        break;
                    case "2":
                        Console.WriteLine("/nYou win! Paper covers rock!");
                        break;
                    case "3":
                        Console.WriteLine("/nComputer wins! Rock crushes 
                        scissors!");
                        break;
                }//end of switch
            }

            else if (computerChoice == 2)
            {
                Console.WriteLine("Computer chose paper");
                Console.Write("Player choice: type 1, 2, or 3 (1=rock 2=paper 
                3=scissors): ");
                Console.ReadKey();

            //beginning of switch
            switch (playerChoice)
                {
                    case "1":
                        Console.WriteLine("/nComputer wins! Paper covers 
                        rock!");
                        break;
                    case "2":
                        Console.WriteLine("/nIt is a tie!");
                        break;
                    case "3":
                        Console.WriteLine("/nYou win! Scissors cuts paper!");
                        break;
                } //end of switch
            }

            else if (computerChoice == 3)
            {
                Console.WriteLine("Computer chose scissors");
                Console.Write("Player choice: type 1, 2, or 3 (1=rock 2=paper 
                3=scissors): ");
                Console.ReadKey();

            //beginning of switch
            switch (playerChoice)
                {
                    case "1":
                        Console.WriteLine("/nYou win! Rock crushes scissors!");
                        break;
                    case "2":
                        Console.WriteLine("/nComputer wins! Scissors cuts 
                        paper!");
                        break;
                    case "3":
                        Console.WriteLine("/nIt is a tie!");
                        break;
                } //end of switch

            }

        } while (playerChoice == "YES");
    }
}

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回答 2

Stack Overflow用户

发布于 2017-04-13 22:33:47

这是让它循环的一种方法：

string playerChoice = "";
Console.Write("Do you want to play rock, paper, scissors? ");
playerChoice = Console.ReadLine();

while(playerChoice.ToUpper().Trim() == "YES")
{
   Random r = new Random();
   int computerChoice = r.Next(1, 4);

   // Put the rest of the code to figure results of game here



   Console.Write("Do you want to play rock, paper, scissors? ");
   playerChoice = Console.ReadLine();
}

票数 0

Stack Overflow用户

发布于 2017-04-14 18:18:26

你的程序中有几个问题，我会试着和你一起解决。

你问玩家是否想玩，如果玩家输入"yes"，你就进入一个do/while循环。你的程序将永远停留在do/while循环中，因为你永远不会问玩家是否想再玩一次，所以答案总是“是”。
你正在重用你的playerChoice变量，无论是玩家想玩游戏还是游戏开始后他们选择了布、石头或剪刀。这应该是两个应该是不同的变量。
你永远不会存储玩家对纸，石头，剪刀选择的结果。这是问题#2的组合，因为您在switch语句中将"YES“与1、2或3进行比较。

要解决问题#1，您应该重新确定玩家是否希望在循环逻辑结束时再次玩游戏，以便从用户获得新的YES/NO输入。

   Console.Write("Do you want to play rock, paper, scissors? ");
   playerChoice = Console.ReadLine().ToUpper();
   } while (playerChoice == "YES");
 }
}

要解决问题#2和#3，您应该使用一个新的变量来保存用户对布、石头、剪刀的选择。

Console.Write("Do you want to play rock, paper, scissors? ");
string playerChoice = Console.ReadLine();
playerChoice = playerChoice.ToUpper();


Random r = new Random();
int computerChoice = r.Next(1, 4);

//new variable for holding the player's input for rock/paper/scissor
string playerThrowChoice;
do
{
    if (computerChoice == 1)
    {
      Console.WriteLine("Computer chose Rock");
      Console.Write("Player choice: type 1, 2, or 3 (1=rock 2=paper 3=scissors): ");
      playerThrowChoice = Console.ReadKey();

     //beginning of switch
     //notice we are using our new variable here
     switch (playerThrowChoice )
     {
         case "1":
             Console.WriteLine("/nIt is a tie!");
             break;
         case "2":
             Console.WriteLine("/nYou win! Paper covers rock!");
             break;
         case "3":
             Console.WriteLine("/nComputer wins! Rock crushes scissors!");
             break;
         }//end of switch
 }

/// ....the rest of your logic