C# Set集合
2021/11/15 14:39:43
本文主要是介绍C# Set集合,对大家解决编程问题具有一定的参考价值,需要的程序猿们随着小编来一起学习吧!
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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