Csharp/C#核心/Lesson4_封装-构造函数和析构函数练习/Program.cs

using System.Runtime.InteropServices;

namespace Lesson4_封装_构造函数和析构函数练习
{
    class Person
    {
        public string name;
        public int age;
        public Person(string name, int age)
        {
            this.name = name;
            this.age = age;
        }
    }
    class Clas
    {
        public string name, major;
        Person[] student;
        public Clas(string name, string major, Person[] student)
        {
            this.name = name;
            this.major = major;
            this.student = student;
        }
        public void PrintInfo(Person[] student)
        {
            Console.WriteLine("{0}班级中学生信息",name);
            for (int i = 0; i < student.Length; i++)
            {
                Console.WriteLine("student的姓名：" + student[i].name + "student的年龄：" + student[i].age);
            }
        }
    }
    class Ticket
    {
        public uint distant;

        public Ticket()
        {
            distant = 0;
        }
        public Ticket(uint distant)
        {
            this.distant = distant;
        }
        public void GetDistant()
        {
            Console.WriteLine(distant);
        }
        public void GetPrice()
        {
            double price = 0d;
            if (distant <= 100)
            {
                price = distant;
            }
            else if (distant <= 200)
            {
                price = Convert.ToDouble(distant * 0.95);
            }
            else if (distant <= 300)
            {
                price = Convert.ToDouble(distant * 0.9);
            }
            else
            {
                price = Convert.ToDouble(distant * 0.8);
            }
            Console.WriteLine(price);

        }
    }
    internal class Program
    {
        static void Main(string[] args)
        {
            Person p1 = new Person("张三", 3);
            Person p2 = new Person("李四", 4);
            
            Console.WriteLine("P1姓名：" + p1.name + "P1年龄" + p1.age);
            Console.WriteLine("P2姓名：" + p2.name + "P2年龄" + p2.age);
            Person[] student = { p1, p2 };
            Console.WriteLine("把P1和P2放到Person的student之后");
            Console.WriteLine("student[0]的姓名："+ student[0].name+ "student[0]的年龄：" + student[0].age);
            Console.WriteLine("student[1]的姓名：" + student[1].name + "student[1]的年龄：" + student[1].age);

            
            Clas c1 = new Clas("三年一班","计算机",student);
            c1.PrintInfo(student);

            Ticket t = new Ticket();
            Console.Write("默认情况下的距离：");
            t.GetDistant();
            Console.Write("赋值初始化后的距离：");
            Ticket t2 = new Ticket(300);
            t2.GetDistant();
            Console.Write("赋值初始化后的价格计算：");
            t2.GetPrice();
        }
    }
}