C#封装

r囧r小猫 2022-04-25 09:32 147阅读 0赞

封装：隐藏信息，并且留出对外的访问接口

访问修饰符：public公共的  private私有的

封装的快捷键： Ctrl + R + E

###       ![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3pzMTM0MjA4NDc3Ng_size_16_color_FFFFFF_t_70][]           Child.cs ###

using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    
    namespace LeiheDuixiang
    {
        /// <summary>
        /// 小朋友
        /// </summary>
        class Child
        {
          //隐藏信息，private不能在类外进行访问
          private string name; //字段
          private string sex;
          private int age;
          private int height;
    
            /// <summary>
           /// 完成字段的对外访问接口
           /// 属性，属性的名字首字母应该大写
           /// </summary>
          public string Name 
          {
              get { return name; }//读访问器，返回字段的值
              set { name = value; } //写访问器，给字段赋值
          }
    
          public string Sex
          {
              get { return sex; }
              set { sex = value; }
          }
    
          public int Age
          {
              get { return age; }
              set { age = value; }
          }
    
          public int Height
          {
              get { return height; }
              set { height = value; }
          }
    
          
         public void PlayBall()
            {
                Console.WriteLine("Hello，我是帅哥");
            }
        }
    }

###       Program.cs ###

using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    
    namespace LeiheDuixiang
    {
        class Program
        {
            static void Main(string[] args)
            {
                Child xiaoming = new Child();//实例化了Child类的对对象
                xiaoming.Name = "马晓明";
                xiaoming.Sex = "男";
                xiaoming.Age = 6;
                xiaoming.Height = 120;
                Console.WriteLine("我叫" + xiaoming.Name + "今年" + xiaoming.Age + "岁。");
    
                xiaoming.PlayBall();
            }
        }
    }

![20190531091817392.png][]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3pzMTM0MjA4NDc3Ng_size_16_color_FFFFFF_t_70]: /images/20220125/d88d9a77ef414c0c8fce20eaaa5d8689.png
[20190531091817392.png]: /images/20220125/6a2b7ebf2f0745a78ae92eb9336d3a03.png