C#实现多文件压缩与解压功能

这个功能没什么可介绍的，大家都懂，直接上代码了。。

实现功能

选择多个文件压缩成zip文件和解压zip文件

开发环境

开发工具： visual studio 2013

.net framework版本：4.5

实现代码

//需要添加icsharpcode.sharpziplib.zip.dll到自己项目
 
 
private void btncompressfile_click(object sender, eventargs e)
 {
     listfiles.items.clear();
     openfiledialog ofd = new openfiledialog();
     ofd.multiselect = true;
     if (ofd.showdialog() == dialogresult.ok)
     {
         listfiles.items.addrange(ofd.filenames);
 
     }
 }
 
 private void btncompress_click(object sender, eventargs e)
 {
     if (listfiles.items.count == 0)
     {
         messagebox.show("请先选择需要压缩的文件");
         return;
     }
     savefiledialog sfd = new savefiledialog();
     sfd.filter = "压缩文件|*.zip";
     if (sfd.showdialog() == dialogresult.ok)
     {
         string[] files = new string[listfiles.items.count];
         for (int i = 0; i < listfiles.items.count; i++)
         {
             files[i] = listfiles.items[i].tostring();
         }
         dynamic result;
         using (zipoutputstream outstream = new zipoutputstream(file.create(sfd.filename)))
         {
             result = zip(files, outstream, "123");
         }
         messagebox.show(result.msg);
 
     }
 
 }
 
 private void btnuncompressfile_click(object sender, eventargs e)
 {
     folderbrowserdialog fbd = new folderbrowserdialog();
     fbd.shownewfolderbutton = true;
     if (fbd.showdialog() == dialogresult.ok)
     {
         txtoutfile.text = fbd.selectedpath;
     }
 }
 
 private void btnuncompress_click(object sender, eventargs e)
 {
     if (string.isnullorwhitespace(txtoutfile.text))
     {
         messagebox.show("请先选择解压路径");
         return;
     }
     openfiledialog ofd = new openfiledialog();
     ofd.filter = "压缩文件|*.zip";
     if (ofd.showdialog() == dialogresult.ok)
     {
         dynamic result = unzip(ofd.filename, txtoutfile.text,"123");
         messagebox.show(result.msg);
     }
 }
 public dynamic zip(string[] files, zipoutputstream outstream, string pwd)
 {
     try
     {
         for (int i = 0; i < files.length; i++)
         {
             if (!file.exists(files[i]))
             {
                 throw new exception("文件不存在");
             }
             using (filestream fs = file.openread(files[i]))
             {
                 byte[] buffer = new byte[fs.length];
                 fs.read(buffer, 0, buffer.length);
                 if (!string.isnullorwhitespace(pwd))
                 {
                     outstream.password = pwd;
                 }
                 zipentry zipentry = new zipentry(path.getfilename(files[i]));
                 outstream.putnextentry(zipentry);
                 outstream.write(buffer, 0, buffer.length);
             }
         }
 
         return new { result = true, msg = "压缩成功" };
     }
     catch (exception ex)
     {
         return new { result = true, msg = "压缩失败:" + ex.message };
     }
 }
 
 public dynamic unzip(string zipfile, string outpath, string pwd)
 {
     try
     {
         if (!directory.exists(outpath))
         {
             directory.createdirectory(outpath);
         }
         using (zipinputstream zipinputstream = new zipinputstream(file.openread(zipfile)))
         {
             if (!string.isnullorwhitespace(pwd))
             {
                 zipinputstream.password = pwd;
             }
             zipentry theentry;
             while ((theentry = zipinputstream.getnextentry()) != null)
             {
                 using (filestream streamwriter = file.create(outpath + "\\" + theentry.name))
                 {
                     byte[] data = new byte[1024 * 1024];
                     int datalength = 0;
                     while ((datalength = zipinputstream.read(data, 0, data.length)) > 0)
                     {
                         streamwriter.write(data, 0, datalength);
                     }
                 }
 
             }
         }
         return new { result = true, msg = "解压成功" };
     }
     catch (exception ex)
     {
         return new { result = true, msg = "解压失败:" + ex.message };
     }
 }

实现效果

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