</p><p>初始化一个HashSet。

var h = new HashSet<string>(arr1);

上面，我们在HashSet中设置了一个数组。以下是数组 -

string[] arr1 = {
   "electronics",
   "accessories”,
   "electronics",
};

以下示例展示了如何在 C# 中实现 HashSet -

示例

using System;
using System.Collections.Generic;
using System.Linq;

class Program {
   static void Main() {
      string[] arr1 = {
         "electronics",
         "accessories”,
         "electronics",
      };

      Console.WriteLine(string.Join(",", arr1));

      // HashSet
      var h = new HashSet(arr1);
      // eliminates duplicate words
      string[] arr2 = h.ToArray();
      Console.WriteLine(string.Join(",", arr2));
   }
}