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  • C# Set集合

    包含不重复元素的集合称为“集(set)”。.NET Framework包含两个集HashSet<T>和SortedSet<T>,它们都实现ISet<T>接口。HashSet<T>集包含不重复元素的无序列表,SortedSet<T>集包含不重复元素的有序列表。
      ISet<T>接口提供的方法可以创建合集,交集,或者给出一个是另一个集的超集或子集的信息。
        var companyTeams = new HashSet<string>() { "Ferrari", "McLaren", "Mercedes" };
        var traditionalTeams = new HashSet<string>() { "Ferrari", "McLaren" };
        var privateTeams = new HashSet<string>() { "Red Bull", "Lotus", "Toro Rosso", "Force India", "Sauber" };
    
        if (privateTeams.Add("Williams"))
          Console.WriteLine("Williams added");
        if (!companyTeams.Add("McLaren"))
          Console.WriteLine("McLaren was already in this set");
    
      IsSubsetOf验证traditionalTeams中的每个元素是否都包含在companyTeams中
        if (traditionalTeams.IsSubsetOf(companyTeams))
        {
          Console.WriteLine("traditionalTeams is subset of companyTeams");
        }
      IsSupersetOf验证traditionalTeams中是否有companyTeams中没有的元素
        if (companyTeams.IsSupersetOf(traditionalTeams))
        {
          Console.WriteLine("companyTeams is a superset of traditionalTeams");
        }
      Overlaps验证是否有交集
        traditionalTeams.Add("Williams");
        if (privateTeams.Overlaps(traditionalTeams))
        {
          Console.WriteLine("At least one team is the same with the traditional " +
          "and private teams");
        }
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  • 原文地址:https://www.cnblogs.com/mathyk/p/15556188.html
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