list函数

List 的容量是 List 可以保存的元素数。当向 List 添加元素时，将通过重新分配内部数组来根据需要自动增大容量。

如果可以估计集合的大小，那么可以使用 List(Int32) 构造函数并指定初始容量，这样便无需在向 List 中添加元素时执行大量的大小调整操作。

可通过调用 TrimExcess 方法或通过显式设置 Capacity 属性减少容量。减少容量会重新分配内存并复制 List 中的所有元素。

此构造函数的运算复杂度为 O(1)。

using System;using System.Collections.Generic;public class Example{    public static void Main()    {        List<string> dinosaurs = new List<string>();        Console.WriteLine("\nCapacity: {0}", dinosaurs.Capacity);        dinosaurs.Add("Tyrannosaurus");        dinosaurs.Add("Amargasaurus");        dinosaurs.Add("Mamenchisaurus");        dinosaurs.Add("Deinonychus");        dinosaurs.Add("Compsognathus");        Console.WriteLine();        foreach(string dinosaur in dinosaurs)        {            Console.WriteLine(dinosaur);        }        Console.WriteLine("\nCapacity: {0}", dinosaurs.Capacity);        Console.WriteLine("Count: {0}", dinosaurs.Count);        Console.WriteLine("\nContains(\"Deinonychus\"): {0}",            dinosaurs.Contains("Deinonychus"));        Console.WriteLine("\nInsert(2, \"Compsognathus\")");        dinosaurs.Insert(2, "Compsognathus");        Console.WriteLine();        foreach(string dinosaur in dinosaurs)        {            Console.WriteLine(dinosaur);        }        Console.WriteLine("\ndinosaurs[3]: {0}", dinosaurs[3]);        Console.WriteLine("\nRemove(\"Compsognathus\")");        dinosaurs.Remove("Compsognathus");        Console.WriteLine();        foreach(string dinosaur in dinosaurs)        {            Console.WriteLine(dinosaur);        }        dinosaurs.TrimExcess();        Console.WriteLine("\nTrimExcess()");        Console.WriteLine("Capacity: {0}", dinosaurs.Capacity);        Console.WriteLine("Count: {0}", dinosaurs.Count);        dinosaurs.Clear();        Console.WriteLine("\nClear()");        Console.WriteLine("Capacity: {0}", dinosaurs.Capacity);        Console.WriteLine("Count: {0}", dinosaurs.Count);    }}/* This code example produces the following output:Capacity: 0TyrannosaurusAmargasaurusMamenchisaurusDeinonychusCompsognathusCapacity: 8Count: 5Contains("Deinonychus"): TrueInsert(2, "Compsognathus")TyrannosaurusAmargasaurusCompsognathusMamenchisaurusDeinonychusCompsognathusdinosaurs[3]: MamenchisaurusRemove("Compsognathus")TyrannosaurusAmargasaurusMamenchisaurusDeinonychusCompsognathusTrimExcess()Capacity: 5Count: 5Clear()Capacity: 5Count: 0 */

利用list函数去变量的最大值

  List<int> list=new List<int>();
            Random r = new Random();
            int[] numbers = new int[10];
            for (int i = 0; i < numbers.Length; i++)
            {
                numbers[i] = r.Next(1, 101);
                list.Add(numbers[i]);
                Console.WriteLine(list[i]);
            }

            
            int temp = 0;
            for (int i = 0; i < numbers.Length; i++)
            {
                if (numbers[i] > temp)
                {
                    temp = numbers[i];
                }
            }
            Console.WriteLine("max is:" + temp);
            Console.ReadKey();
        }