C# Aggregate 用法范例

C# Aggregate 用法范例

using System;
using System.Linq;
using System.Collections;
using System.Collections.Generic;
public class MainClass {
    public static void Main() {
        int N = 5;
        IEnumerable<int> intSequence = Enumerable.Range(1, N);
        foreach (int item in intSequence)
            Console.WriteLine(item);
        int agg = intSequence.Aggregate((av, e) => av * e);
        Console.WriteLine("{0}! = {1}", N, agg);
    }
}