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[ASP.net教程]C#入门经典Lambda


 1 using System; 2 using System.Collections.Generic; 3 using System.Linq; 4 using System.Text; 5  6 namespace LambdaSample 7 { 8   class Program 9   {10     static void Main(string[] args)11     {12       int[] myIntArray = { 1,2, 3, 4, 5 };13       //累加器计算数组总和 14       int result = myIntArray.Aggregate((paramA, paramB) => paramA + paramB);15       int result1 = myIntArray.Aggregate<int>((paramA, paramB) => paramA + paramB);16       int result2 = myIntArray.Aggregate<int, int>(0, (paramA, paramB) => paramA + paramB);17       //递归计算数组总和18       int result3 = count(5);19       Console.WriteLine("The Result is: " + result);20       Console.WriteLine("The Result1 is: " + result1);21       Console.WriteLine("The Result2 is: " + result2);22       Console.WriteLine("The Result3 is: " + result3);23 24       string[] myStrArray = { "Admin", "Change", "ByPage" };25       //字符串数组拼接 何问起26       string strResult = myStrArray.Aggregate((paramA, paramB) => paramA + " " + paramB);27       //字符串数组字符串总长度计算28       int result4 = myStrArray.Aggregate<string, int>(0, (a, b) => a + b.Length);29       //字符串数组拼接2,增加字符串"Some curries: "30       string strResult1 = myStrArray.Aggregate<string, string>("Some curries: ", (a, b) => a + " " + b);31       //字符串数组字符串总长度计算2 hovertree.com32       int result5 = myStrArray.Aggregate<string, string, int>("Some curries: ", (a, b) => a + " " + b, a => a.Length);33       Console.WriteLine("The StrResult is: " + strResult);34       Console.WriteLine("The Result4 is: " + result4);35       Console.WriteLine(strResult1);36       Console.WriteLine("The Result5 is: " + result5);37       Console.ReadKey();38     }39 40     static int count(int n)41     {42       if (n == 1)43       {44         return 1;45       }46       return n + count(n - 1);47     }48   }49 }

转自:http://hovertree.com/h/bjaf/jf9yeju1.htm

参考:C# Lambda 实例代码 深入浅出Lambda表达式 C#泛型详细介绍

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