string path = @"C:\Users\Administrator\Desktop\1.txt";                using (FileStream ws = new FileStream(path, FileMode.OpenOrCreate, FileAccess.Write))                {                    using (BinaryWriter bw = new BinaryWriter(ws))                    {                        bw.Write(123);                        bw.Write(true);                        bw.Write("hello world");                    }                }                using (FileStream rs = new FileStream(path, FileMode.Open, FileAccess.Read))                {                    using (BinaryReader br = new BinaryReader(rs))                    {                        //读取的顺序必须和写入的顺序一致                        int i = br.ReadInt32();                        bool b = br.ReadBoolean();                        string s = br.ReadString();                        Console.WriteLine(i);                        Console.WriteLine(b);                        Console.WriteLine(s);                    }                }