2021-10-14

  

1、添加同一对象

using System.Collections.Generic;

public class Test(){

User u1 = new User ();

        u1.Id = 101;

        u1.Name = "张三";

        User u2 = new User();

        u2.Id = 102;

        u2.Name = "李四";

       

        ArrayList list = new ArrayList();

        list.Add(u1);

        list.Add(u2);

        foreach(User u in list)

{

            Debug.Log(u.Id + "\t" + u.Name);

         }  

}

2、添加多个不同对象

ArrayList list = new ArrayList();

User u=new User();

u1.Id = 101;

         u1.Name = "张三";

Student s=new Student();

s.Id = 101;

         s.Name = "李四";

list.Add(u);

list.Add(s);

foreach (object obj in list)

        {

            if (obj is Student)

            {

                Debug.Log("AAA");

            }

            if (obj is User)

            {

                Debug.Log("BBB");

            }

     }

3、模板：template

    class Chinese

    {

        string name;

        int age;

    }

    class American

    {

        string name;

        int age;

    }

    class Person<T>

    {

        T name;

        T age;

    }

    class Test

    {

        static void Main(string[] args)

        {

                    Person<Chinese> chinese = new Person<Chinese>();

              Person<American> american = new Person<American>();

        }

     }

4、泛型

泛型是程序设计语言的一种特性，允许程序员在强类型程序设计语言中编写代码时定义一些可变部分，那些部分在使用前必须作出指明。

List list = new List();

            list.Add("张三");

            list.Add("李四");

            list.Add("王五");

            list.Add("田六");

            list.Add("赵七");

            for (int i = 0; i < list.Count; i++)

            {

                Console.WriteLine("for循环：" + list[i]);

            }

            list.RemoveAt(0);

            foreach (string item in list)

            {

                Console.WriteLine("foreach迭代：" + item);

            }