Ch1——初见get和set

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

namespace Ch1_Name
{
    public class Name
    {
        private string fname, mname, lname;
        public Name(string first, string middle, string last)
        {
            fname = first;
            mname = middle;
            lname = last;
        }
        public string firstName
        {
            get { return fname; }
            //set { fname = firstName; }
        }
        public string middleName
        {
            get { return mname; }
            //set { mname = middleName; }
        }
        public string lastName
        {
            get { return lname; }
            //set { lname = lastName; }
        }
        public override string tostring()
        {
            return string.Format("{0}{1}{2}", fname, mname, lname);
        }
        public string initials()
        {
            return string.Format("{0}{1}{2}", fname.Substring(0, 1), mname.Substring(0, 1), lname.Substring(0, 1));
        }
    }

    class Program
    {
        static void Main(string[] args)
        {
            Name myName = new Name("App","Ban","Code");
            string fullName, inits;
            fullName = myName.ToString();
            inits = myName.initials();
            Console.WriteLine("My name is {0}", fullName);
            Console.WriteLine("My initials are {0}", inits);
        }
    }
}

重点说说get和set的用法。

以我的观点来看，get和set就是为了取代以前C++里的如下用法：

public class CClass
{
        private int num;
        public int getNum()
        {    
                return num;
        }  
        public void setNum(int newNum)
        {
                num = newNum;
        }
}

和以前的写法主要区别在于，C++采用公用成员函数的方法操作private数据，而C#采用与private数据相同格式的public数据，并在public数据上定义get和set。