C#掷骰子程序如何实现所有投掷结果相同时终止while循环

核心实现逻辑 #

• 每次进入while循环后先创建临时List<int>存储当前轮次所有骰子的投掷结果
• 投掷每个骰子时同时把值写入临时列表，再做输出
• 单轮投掷完成后，校验列表中所有值是否和第一个值相等，相等则终止循环
• 调整计数逻辑，原代码count统计的是累计投掷的骰子总个数，修改为统计尝试轮次，匹配输出的attempts语义

修改后的完整代码 #

using System;
using System.Collections.Generic;
using System.Linq; // 新增引用，用All方法做判断更简洁
namespace AnyDice
{
    class Program
    {
        static void Main(string[] args)
        {
            int diceSides;
            int rollDie;
            int count = 0; // 统计尝试轮次
            bool keepRolling = true;
            List<int> num = new List<int>();
            Random random = new Random();

            Console.Write("Write the number of sides of your die: ");
            diceSides = Convert.ToInt32(Console.ReadLine());

            Console.WriteLine("Type the numbers of the die");

            for (int i = 0; i < diceSides; i++)
            {
                int rank = 1 + i;
                Console.Write(rank + "~~> ");
                num.Add(Convert.ToInt32(Console.ReadLine()));
            }

            num.Sort();

            Console.WriteLine("\nHere's the die and its contents");
            for (int i = 0; i < num.Count; i++)
            {
                Console.Write("[");
                Console.Write(num[i]);
                Console.Write("]");
            }

            Console.WriteLine("\nHow many times do you want to roll at once");
            rollDie = Convert.ToInt32(Console.ReadLine());
            while (keepRolling)
            {
                count++; // 每轮开始计数+1
                List<int> currentRolls = new List<int>(); // 存储当前轮次所有骰子结果
                for (int i = 0; i < rollDie; i++)
                {
                    int rollValue = num[random.Next(num.Count)];
                    currentRolls.Add(rollValue); // 先存值
                    Console.Write($"[{rollValue}]"); // 再输出
                }
                Console.WriteLine(); // 轮次输出完换行
                // 判断所有值是否一致
                if (currentRolls.All(v => v == currentRolls[0]))
                {
                    keepRolling = false;
                    Console.WriteLine("所有骰子点数相同，终止投掷！");
                }
                else
                {
                    Console.ReadLine(); // 不一致时按回车继续下一轮
                }
            }

            Console.WriteLine("It took you " + count + " attempts");

            Console.ReadLine();
        }
    }
}

无Linq兼容实现方案 #

如果不想引入Linq的All方法，可以手动遍历判断，替换上面的一致性校验逻辑即可：

bool allSame = true;
int firstValue = currentRolls[0];
foreach(int val in currentRolls)
{
    if(val != firstValue)
    {
        allSame = false;
        break;
    }
}
if(allSame)
{
    keepRolling = false;
    Console.WriteLine("所有骰子点数相同，终止投掷！");
}

内容的提问来源于stack exchange，提问作者beats