【C#】Number Random

这次我们来看到C#乱数的实务应用拉~ Random.Next()~

它又分为三种方向~ 分别是 Next()~ Next(100)~ Next(100, 200)~

这次的乱数实务比较複杂一点lol~ 因为写了不重複及例外错误的功能~

学习目标: Number Random 实务

学习难度: ☆☆☆

using System;using System.Collections.Generic;namespace ConsoleApp1{    class NumberRandom    {        public void RandomFucntion(int MiniNumber, int MaxNumber, int guessnumber)        {            Random randomrange = new Random();            List<int> RandomCandiate = new List<int>();            for (int i = 0; i < guessnumber; i++)            {                RandomCandiate.Add(randomrange.Next(MiniNumber, MaxNumber));                for (int j = 0; j < i; j++)                {                    while (RandomCandiate[j] == RandomCandiate[i])                    {                        j = 0;                        RandomCandiate[i] = randomrange.Next(MiniNumber, MaxNumber);                    }                }                Console.WriteLine(RandomCandiate[i]);            }        }    }    class MainProgram    {        static void Main()        {            NumberRandom numberrandom = new NumberRandom();            try            {                Console.WriteLine("Please input mini num");                int MiniNumber = int.Parse(Console.ReadLine());                if (MiniNumber < 0)                {                    throw new ArgumentOutOfRangeException();                }                Console.WriteLine("Please input max num");                int MaxNumber = int.Parse(Console.ReadLine());                Console.WriteLine("Please input how many  num you wana guess");                int GuessNumber = int.Parse(Console.ReadLine());                if (GuessNumber < 0 || GuessNumber > 100000)                {                    throw new ArgumentOutOfRangeException();                }                numberrandom.RandomFucntion(MiniNumber, MaxNumber, GuessNumber);            }            catch (ArgumentOutOfRangeException ex)            {                Console.WriteLine("error");                Console.Write(ex.Message);                Main();            }            catch (Exception ex)            {                Console.WriteLine("error");                Console.Write(ex.Message);                Main();            }        }    }}

参考资料:

https://www.geeksforgeeks.org/c-sharp-random-next-method/