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  • 文件流高级压缩文件和解压缩

    using System;
    using System.Collections.Generic;
    using System.ComponentModel;
    using System.Data;
    using System.Drawing;
    using System.IO;
    using System.IO.Compression;
    using System.Linq;
    using System.Text;
    using System.Threading.Tasks;
    using System.Windows.Forms;

    namespace 文件流
    {
        public partial class Form1 : Form
        {
            public Form1()
            {
                InitializeComponent();
            }

            private void button1_Click(object sender, EventArgs e)
            {
                string s = "好好好好好好好好好好好好好好好好好好好好好哈好好好好好啊";
                for (int i = 0; i < 10; i++)
                {
                    s += s;
                }
                using (FileStream fs=File.OpenWrite(@"c:\1.txt"))
                {
                    using (GZipStream zipStream=new GZipStream(fs,CompressionMode.Compress))
                    {
                        byte[] bytes = Encoding.UTF8.GetBytes(s);
                        zipStream.Write(bytes,0,bytes.Length);
                       MessageBox.Show("压缩成功!");          

                    }
                }
           
            }

            private void button2_Click(object sender, EventArgs e)
            {
                using (FileStream fs=File.OpenRead(@"c:\1.txt"))
                {
                    using (GZipStream zipStream=new GZipStream(fs,CompressionMode.Decompress))
                    {
                        using (FileStream fs1=File.OpenWrite(@"c:\upzip.txt"))
                        {
                            int bytesRead;
                            byte[] bytes=new byte[1024];
                            while((bytesRead=zipStream.Read(bytes,0,bytes.Length))>0)
                            {
                                fs1.Write(bytes,0,bytesRead);
                            }

                            MessageBox.Show("解压成功!");         

                        }
                    }
                }
            }
        }
    }

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  • 原文地址:https://www.cnblogs.com/wangyhua/p/4050618.html
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