需要说明 - 将对象作为方法参数传递

问题描述

大家好，

我在这里很困惑，不确定是否有合适的地方澄清，但这里有。该代码是来自20483＃course的Microsoft Lab练习的一部分

我有这个课程： -  

公共班学生：IComparable< Student> 
 {
 public int StudentID {get;组; } 
公共字符串FirstName {get;组; } 
公共字符串LastName {get;组; } 
 
 //初始化新学生
公共学生的属性的构造函数（int studentID，string firstName，string lastName）
 {
 StudentID = studentID; 
 FirstName = firstName; 
 LastName = lastName; 
 
} 
 
 //默认构造函数
 public Student（）
 {
 StudentID = 0; 
 FirstName = String.Empty; 
 LastName = String.Empty; 
 
} 
 
 
 
 //根据LastName和FirstName属性比较学生对象
 //所以我们实际上是在传递学生被命名为其他
 //对象的对象也是实例
 public int CompareTo（Student other）
 {
 //连接此学生的LastName和FirstName 
 string thisStudentsFullName = LastName + FirstName; 
 
 //连接"其他"的LastName和FirstName。 student 
 string otherStudentsFullName = other.LastName + other.FirstName; 
 
 //使用String.Compare比较连接的名称并返回结果
 return（String.Compare（thisStudentsFullName，otherStudentsFullName））; 
} 

注意CompareTo方法，我知道我在这里实现了接口，但我的问题是关于"Student other"，Student的对象作为方法中的参数传递。  

对象是类权利的实例，并使用"NEW"创建。关键词。那么当没有创建新实例时，该方法如何将对象作为参数？我迷失在这里。我是新手。

解决方案

Hi all,

I am kind of confused here, not sure if the right place to clarify, but here goes. The code is part of the Microsoft Lab exercise from the 20483# course

I have got this class : - 

public class Student: IComparable<Student>
    {
        public int StudentID { get; set; }
        public string FirstName { get; set; }
        public string LastName { get; set; }

        // Constructor to initialize the properties of a new Student
        public Student(int studentID, string firstName, string lastName)
        {
            StudentID = studentID;
            FirstName = firstName;
            LastName = lastName;

        }

        // Default constructor
        public Student()
        {
            StudentID = 0;
            FirstName = String.Empty;
            LastName = String.Empty;

        }



        // Compare Student objects based on their LastName and FirstName properties
        // so we are actually passing the student object which is named as other
        // objects are also instances
        public int CompareTo(Student other)
        {
            // Concatenate the LastName and FirstName of this student
            string thisStudentsFullName = LastName + FirstName;

            // Concatenate the LastName and FirstName of the "other" student
            string otherStudentsFullName = other.LastName + other.FirstName;

            // Use String.Compare to compare the concatenated names and return the result
            return(String.Compare(thisStudentsFullName, otherStudentsFullName));
        }

Notice the CompareTo method, I know I am implementing the interface here, but my question is on the "Student other", the object of Student which is passed as a parameter in the method.  

Object is an instance of a class right and is created by using the "NEW" keyword. How is that then the method takes the object as a parameter when no new instance has been created? I am lost here. I am newbie.

解决方案

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