c# - 生成随机词

Question

苹果、芒果、木瓜、香蕉、番石榴、菠萝 - 如何使用 c# 随机（一个接一个）生成这些单词？请帮我从我拥有的单词列表中随机生成单词..

Answer 1

Random rnd = new Random();
string GetRandomFruit()
{
    string[] fruits = new string[] { "apple", "mango", "papaya", "banana", "guava", "pineapple" };
    return fruits[rnd.Next(0,fruits.Length)];
}

Answer 2

You can use Fisher-Yates to do an in place shuffle of an array:

static class ArrayMethods
{
    private static readonly Random rng = new Random();
    public static void Shuffle<T>(IList<T> list)
    {
      var r = rng;
      var len = list.Count;
      for(var i = len-1; i >= 1; --i)
      {
          var j = r.Next(i);
          var tmp = list[i];
          list[i] = list[j];
          list[j] = tmp;
      }

    }
}

as follows:

var arr = new[]{
  "apple", 
  "mango", 
  "papaya", 
  "banana", 
  "guava", 
  "pineapple"
};
ArrayMethods.Shuffle(arr);
foreach(var item in arr)
    //print 'em out

Answer 3

OrderBy您可以使用 LINQ 的方法和使用Guids获得“随机排序”

var words = new [] {"apple", "mango", "papaya", "banana", "guava", "pineapple"};
var wordsInRandomOrder = words.OrderBy(i => Guid.NewGuid());

foreach(var word in wordsInRandomOrder)
{
    Console.WriteLine(word);
}

以下foreach将以随机顺序为您提供数组中的每个项目。words

Answer 4

您可以编写以下代码。

string[] fruits = new string[] { "apple", "mango", "papaya", "banana", "guava", "pineapple" };
Console.WriteLine(fruits[new Random().Next(0, fruits.Length)]);