15.C# - 알고리즘 : LINQ 그룹 (LINQ - Group)

C# LINQ를 이용한 그룹 알고리즘 예제입니다.

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Program.cs

using System; using System.Collections.Generic; using System.Linq; using System.Collections; public class ProductInfo {     public string Name { get; set; }     public int Quantity { get; set; } } public class 그룹알고리즘 {     public static void Main()     {         //[1]Input         List<ProductInfo> lst = new List<ProductInfo>() {             new ProductInfo{Name="RADIO", Quantity=3},             new ProductInfo{Name="TV", Quantity=1},             new ProductInfo{Name="RADIO", Quantity=2},             new ProductInfo{Name="DVD", Quantity=5} };         //[2]Process         IEnumerable<IGrouping<string, ProductInfo>> q =             from p in lst group p by p.Name;         //[3]Output         foreach (IGrouping<string, ProductInfo> item in q)         {             Console.WriteLine("{0}", item.Key);             foreach (ProductInfo pi in item)             {                 Console.WriteLine("상품:{0}, 판매량:{1}", pi.Name, pi.Quantity);             }         }     } }    //구글에서 LINQ 101 SAMPLE 보기

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결과화면

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15.그룹알고리즘.zip