using System; using System.Collections; using System.Collections.Generic; using System.Linq; using Xunit; using LinqStudy; namespace LinqStudy.Test.LinqToObject { /// /// 串联操作 /// public class ConcatTest { /// /// Concat:将两个序列合并成一个序列,不去重。与Union不同。 /// public void Concat_Test() { List peoples1 = new List() { new Person(){ Id=2, Name="小龙女", Age=28}, new Person(){ Id=4, Name="杨过", Age=32}, }; List peoples2 = new List() { new Person(){ Id=2, Name="小龙女", Age=28}, new Person(){ Id=3, Name="云花公主", Age=16}, }; var concatAct = peoples1.Concat(peoples2); var totalCount = concatAct.Count(); Assert.Equal(4, totalCount); } } }