using System;
using System.Collections.Generic;
using System.Text;
using System.IO;

namespace _5_4
{
    class Program
    {
        private const string path = "E:\\test2.txt";
        static void Main(string[] args)
        {
            StreamWriter sw = null;
            try
            {
                sw = createfile();
                writetext(sw);
                readtext(sw);
            }
            catch (IOException e)
            {
                Console.WriteLine(e.StackTrace);
            }
            finally
            {
                if (sw != null)
                    sw.Close();
            }
        }

        private static StreamWriter createfile()
        {
            FileStream fs = new FileStream(path, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.None);
            return new StreamWriter(fs);
        }
        private static void writetext(StreamWriter sw)
        {
            sw.WriteLine("testing the streamwriter capabilities");
            sw.WriteLine("writing bboolean {0}",true);
            sw.WriteLine("writing float {0}",6.78);
            sw.WriteLine("writing long {0}",4576457L);
            sw.Write(445);
            sw.WriteLine(new person("jack"));
            sw.Flush();
        }
        private static void readtext(StreamWriter sw)         //读取流中数据
        {
            StreamReader sr = new StreamReader(sw.BaseStream); //返回基础流，也不知道是什么意思？？？？？？懂得的说下啊
            sr.BaseStream.Seek(0, SeekOrigin.Begin);
            while (sr.Peek() > -1)  //检测 下一个字符是否可用，但指针并不向后移动。如到末尾，则返回-1
            {
                Console.WriteLine(sr.ReadLine()); //读取一行后，指针向后移动，
            }
        }
    }
    class person
    {
        string name;
        public person(string name) { this.name = name; }
    }
}

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