using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace _7構造方法
{
public class Student
{
public int StudentId { get; set; }
public string StudentName { get; set; }
public int Age { get; set; }
public DateTime Birthday { get; set; }
public string PhoneNumber { get; set; }

    #region 構造方法。構造方法的作用就是初始化物件。
    /// <summary>
    /// 沒有引數的構造方法
    /// </summary>
    public Student()
    {
        StudentId = 1001;
        StudentName = "張勤闊";
    }
    /// <summary>
    /// 帶有兩個引數的構造方法
    /// </summary>
    /// <param name="stuId"></param>
    /// <param name="stuName"></param>
    public Student(int stuId, string stuName)
    {
        this.StudentName = stuName;
        this.StudentId = stuId;
    }
    /// <summary>
    /// 帶有三個引數，繼承自上一個構造方法的構造方法
    /// </summary>
    /// <param name="stuId"></param>
    /// <param name="stuName"></param>
    /// <param name="age"></param>
    public Student(int stuId, string stuName, int age)
        : this(stuId, stuName)
    {
        this.Age = age;
    }

    #endregion

    public string GetStudent()
    {
        string info = string.Format("姓名為：{0}，年齡為：{1}", StudentName, Age);
        return info;
    }
}

//使用構造方法
class Program
{
    static void Main(string[] args)
    {
        Student objStudent = new Student(1000, "張偉", 39);
        string info = objStudent.GetStudent();
        Console.WriteLine(info);
        Console.Read();
    }
}
 

}