文件序列化和反序列化

序列化是把对象以二进制的形式存在文件中

 List<Person> ps = new List<Person>();
            ps.Add(new Person("张三", 12, '男'));
            //能不能直接把对象，以二进制的形式存在文件中呢？
            FileStream fs = new FileStream(@"d:\序列化", FileMode.Create, FileAccess.Write);
            using (fs)
            {
                BinaryFormatter bf = new BinaryFormatter();
                bf.Serialize(fs, ps);
            } 

反序列化：

FileStream fs = new FileStream(@"d:\序列化", FileMode.Open, FileAccess.Read);
            List<Person> ps;
            using (fs)
            {
                BinaryFormatter bf = new BinaryFormatter();
                ps = (List<Person>)bf.Deserialize(fs);

            }

注意：要序列化类必须打上 [Serializable]

[Serializable]
        class Person
        {
            private string name;
            private int age;
            private char sex;
            public Person(string name, int age, char sex)
            {
                this.name = name;
                this.age = age;
                this.sex = sex;
            }
            public void SayHello()
            {
                Console.WriteLine("大家好，我是{0},今年{1}岁了,我是{2}生",name,age,sex);
            }
            public string Name
            {
                get { return name; }
                set { name = value; }
            }
            public int Age
            {
                get { return age; }
                set { age = value; }
            }
            public char Sex
            {
                get { return sex; }
                set { sex = value; }
            }
        }