区别：
- 值类型和引用类型在内存上存储的地方不一样
- 在传递值类型和传递引用类型的时候，传递的方式不一样，值类型我们称之为值传递，引用类型称之为引用传递
值类型：int,double,bool,char,decimal,struct,enum
引用类型：string,自定义类
存储：
值类型的值是存储在内存的栈当中
引用类型的值是存储在内存的堆当中
1 using System;
2 using System.Collections.Generic;
3 using System.Linq;
4 using System.Text;
5 using System.Threading.Tasks;
6
7 namespace _04值类型和引用类型
8 {
9 class Program
10 {
11 static void Main(string[] args)
12 {
13 //值类型:int double char decimal bool enum struct
14 //引用类型：string 数组 自定义类 集合 object 接口
15
16 //值传递和引用传递
17 //int n1 = 10;
18 //int n2 = n1;
19 //n2 = 20;
20 //Console.WriteLine(n1);
21 //Console.WriteLine(n2);
22 //Console.ReadKey();
23
24 //Person p1 = new Person();
25 //p1.Name = "张三";
26 //Person p2 = p1;
27 //p2.Name = "李四";
28 //Console.WriteLine(p1.Name);
29 //Console.ReadKey();
30
31 //Person p = new Person();
32 //p.Name = "张三";
33 //Test(p);
34 //Console.WriteLine(p.Name);
35 //Console.ReadKey();
36
37 string s1 = "张三";
38 string s2 = s1;
39 s2 = "李四";
40 Console.WriteLine(s1);
41 Console.WriteLine(s2);
42 Console.ReadKey();
43
44 int number = 10;
45 TestTwo(ref number);
46 Console.WriteLine(number);
47 Console.ReadKey();
48 }
49 //int n=number;
50 public static void TestTwo(ref int n)
51 {
52 n += 10;
53 }
54
55 //Person pp=p;
56 public static void Test(Person pp)
57 {
58 Person p = pp;
59 p.Name = "李四";
60 }
61 }
62
63 public class Person
64 {
65 private string _name;
66 public string Name
67 {
68 get { return _name; }
69 set { _name = value; }
70 }
71 }
72 }
序列化：就是将对象转换为二进制
返序列化：就是将二进制转换为对象
作用：传输数据
1 using System;
2 using System.Collections.Generic;
3 using System.Linq;
4 using System.Text;
5 using System.Threading.Tasks;
6 using System.IO;
7 using System.Runtime.Serialization.Formatters.Binary;
8 namespace _05序列化和反序列化
9 {
10 class Program
11 {
12 static void Main(string[] args)
13 {
14 //要将p这个对象 传输给对方电脑
15 //Person p = new Person();
16 //p.Name = "张三";
17 //p.Age = 19;
18 //p.Gender = '男';
19 //using (FileStream fsWrite = new FileStream(@"C:\Users\SpringRain\Desktop\111.txt", FileMode.OpenOrCreate, FileAccess.Write))
20 //{
21 // //开始序列化对象
22 // BinaryFormatter bf = new BinaryFormatter();
23 // bf.Serialize(fsWrite, p);
24 //}
25 //Console.WriteLine("序列化成功");
26 //Console.ReadKey();
27
28 //接收对方发送过来的二进制 反序列化成对象
29 Person p;
30 using (FileStream fsRead = new FileStream(@"C:\Users\SpringRain\Desktop\111.txt", FileMode.OpenOrCreate, FileAccess.Read))
31 {
32 BinaryFormatter bf = new BinaryFormatter();
33 p = (Person)bf.Deserialize(fsRead);
34 }
35 Console.WriteLine(p.Name);
36 Console.WriteLine(p.Age);
37 Console.WriteLine(p.Gender);
38 Console.ReadKey();
39 }
40 }
41
42
43 [Serializable]
44 public class Person
45 {
46 private string _name;
47
48 public string Name
49 {
50 get { return _name; }
51 set { _name = value; }
52 }
53
54
55 private char _gender;
56
57 public char Gender
58 {
59 get { return _gender; }
60 set { _gender = value; }
61 }
62
63 private int _age;
64
65 public int Age
66 {
67 get { return _age; }
68 set { _age = value; }
69 }
70 }
71 }