Select更新

LinqStudy.Test/LinqToObject/SelectTest.cs

@@ -0,0 +1,29 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Linq;
+
+using Xunit;
+
+using LinqStudy;
+
+namespace LinqStudy.Test.LinqToObject
+{
+    /// <summary>
+    /// Select 测试
+    /// </summary>
+    public class SelectTest
+    {
+        [Fact]
+        public void TestName()
+        {
+            // Arrange
+            var persons = PersonManager.GetPersons();
+            // Act
+            var maps=persons.Select(p=>p.Age).ToList();
+            
+            // Assert
+            Assert.IsType<List<int>>(maps);
+        }
+    }
+}

LinqStudy/Models/PersonManager.cs

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+using System;
+using System.Collections;
+using System.Collections.Generic;
+
+namespace LinqStudy
+{
+    public static class PersonManager
+    {
+        public static List<Person> GetPersons()
+        {
+            List<Person> persons=new List<Person>()
+            {
+                new Person(){Id=1, Name="乐蓉", Age=21},
+                new Person(){Id=2, Name="陌离殇", Age=46},
+                new Person(){Id=3, Name="青衫泪", Age=12},
+                new Person(){Id=4, Name="年华流逝", Age=9},
+                new Person(){Id=5, Name="念奴娇", Age=47},
+                new Person(){Id=6, Name="景平", Age=53},
+                new Person(){Id=7, Name="王高峰", Age=86},
+                new Person(){Id=8, Name="思菱", Age=37},
+                new Person(){Id=9, Name="孙瀚昂", Age=52},
+                new Person(){Id=10, Name="九重吟", Age=87},
+                new Person(){Id=11, Name="翠巧", Age=28},
+                new Person(){Id=12, Name="凡雁", Age=47},
+                new Person(){Id=13, Name="王小姐", Age=13},
+                new Person(){Id=14, Name="映冬", Age=60},
+                new Person(){Id=15, Name="李四", Age=72},
+                new Person(){Id=16, Name="独家等待", Age=84},
+                new Person(){Id=17, Name="怀蕊", Age=56},
+                new Person(){Id=18, Name="笑叹红尘", Age=2},
+                new Person(){Id=19, Name="梦秋", Age=86},
+                new Person(){Id=20, Name="相思劫", Age=74},
+            };
+
+            return persons;
+
+        }
+    }
+}