c# 允许把数据序列化成某种格式,存储在文件里,然后可以在其他机器上,读取文件内容,再反序列化成数据
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.IO; using System.Linq; using System.Runtime.Serialization; using System.Runtime.Serialization.Formatters.Binary; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; using System.Xml.Serialization; namespace WindowsFormsApp75 { public partial class Form1 : Form { public Form1() { InitializeComponent(); var stu1 = new Student("Zhangsan", 20, "Xian"); // Binary Format // MS announced dangerous and is not recommended var binaryForamtter = new BinaryFormatter(); using (var fs1 = new FileStream("binary.txt", FileMode.Create)) { binaryForamtter.Serialize(fs1, stu1); } using (var fs2 = new FileStream("binary.txt", FileMode.Open)) { var result = binaryForamtter.Deserialize(fs2); } // Xml // MS announced it's safe var serializer = new XmlSerializer(typeof(Student)); using (var fs1 = new FileStream("xml.txt", FileMode.Create)) { serializer.Serialize(fs1, stu1); } using (var fs2 = new FileStream("xml.txt", FileMode.Open)) { var result = serializer.Deserialize(fs2); } // DataContractSerializer // MS announced it's safe var serializer2 = new DataContractSerializer(typeof(Student)); using (var fs1 = new FileStream("data.txt", FileMode.Create)) { serializer2.WriteObject(fs1, stu1); } using (var fs2 = new FileStream("data.txt", FileMode.Open)) { var result = serializer2.ReadObject(fs2); } } } [Serializable] public class Student { public Student() { } public Student(string name, int age, string address) { this.Name = name; this.Age = age; this.Address = address; } public string Name { get; set; } public int Age { get; set; } public string Address { get; set; } } }
三种方法的文件存储内容
第一种,打不开,存储的是字节流,不是字符串
第二种:
第三种: