二进制文件序列化

二进制序列化的目的:为了能把对象,以二进制的形式存入文件中.

二进制序列化的操作步骤:(1)将要序列化的对象标记为[Serializable]

(2)定义一个BinnaryFormatter类

(3)调用BinnaryFormatter类的Serialize方法

class Program
    {
        static void Main(string[] args)
        {
            List<Person> list = new List<Person>();
            list.Add(new Person("翟群", 18, '女'));
            //将对象以二进制形式存入文件
            FileStream f = new FileStream("D:\序列化文件.txt", FileMode.Create, FileAccess.Write);
            using (f)
            {
                BinaryFormatter bf = new BinaryFormatter();
                bf.Serialize(f, list);
            }
        }
    }
    [Serializable]//将Person类定义为可序列化的
    class Person
    {
        public Person(string name,int age,char gender)
        {
            this.name = name;
            this.age = age;
            this.gender = gender;
        }
        private string name;
        public string Name
        {
            set { name = value; }
            get { return name; }
        }
        private int age;
        public int Age
        {
            set { age = value; }
            get { return age; }
        }
        private char gender;
        public char Gender
        {
            set { gender = value; }
            get { return gender; }
        }
        public void SayHello()
        {
            Console.WriteLine("大家好,我是{0},今年{1}岁,我是{2}", name, age, gender);
        }
    }

 2.反序列化

   //反序列化
            FileStream f1 = new FileStream("D:\序列化文件.txt", FileMode.Open, FileAccess.Read);
            using (f1)
            {
                BinaryFormatter b1 = new BinaryFormatter();
               List<Person> ps=(List<Person>) b1.Deserialize(f1);
            }