以下为网上找的代码，具体出处忘记了
1 /// <summary> 2 /// Zip操作基于 DotNetZip 的封装 3 /// </summary> 4 public static class ZipUtils 5 { 6 /// <summary> 7 /// 得到指定的输入流的ZIP压缩流对象【原有流对象不会改变】 8 /// </summary> 9 /// <param name="sourceStream"></param> 10 /// <returns></returns> 11 public static Stream ZipCompress(Stream sourceStream, string entryName = "zip") 12 { 13 MemoryStream compressedStream = new MemoryStream(); 14 if (sourceStream != null) 15 { 16 long sourceOldPosition = 0; 17 try 18 { 19 sourceOldPosition = sourceStream.Position; 20 sourceStream.Position = 0; 21 using (ZipFile zip = new ZipFile()) 22 { 23 zip.AddEntry(entryName, sourceStream); 24 zip.Save(compressedStream); 25 compressedStream.Position = 0; 26 } 27 } 28 catch 29 { 30 } 31 finally 32 { 33 try 34 { 35 sourceStream.Position = sourceOldPosition; 36 } 37 catch 38 { 39 } 40 } 41 } 42 return compressedStream; 43 } 44 45 46 /// <summary> 47 /// 压缩ZIP文件 48 /// 支持多文件和多目录，或是多文件和多目录一起压缩 49 /// </summary> 50 /// <param name="list">待压缩的文件或目录集合</param> 51 /// <param name="strZipName">压缩后的文件名</param> 52 /// 删除文件 53 /// <param name="IsDirStruct">是否按目录结构压缩</param> 54 /// <returns>成功：true/失败：false</returns> 55 public static bool CompressMulti(List<string> list, string strZipName, bool IsDirStruct) 56 { 57 try 58 { 59 using (ZipFile zip = new ZipFile(Encoding.Default))//设置编码，解决压缩文件时中文乱码 60 { 61 foreach (string path in list) 62 { 63 string fileName = Path.GetFileName(path);//取目录名称 64 //如果是目录 65 if (Directory.Exists(path)) 66 { 67 if (IsDirStruct)//按目录结构压缩 68 { 69 zip.AddDirectory(path, fileName); 70 } 71 else//目录下的文件都压缩到Zip的根目录 72 { 73 zip.AddDirectory(path); 74 } 75 } 76 if (File.Exists(path))//如果是文件 77 { 78 zip.AddFile(path); 79 } 80 } 81 zip.Save(strZipName);//压缩 82 83 84 85 return true; 86 } 87 } 88 catch (Exception) 89 { 90 return false; 91 } 92 } 93 94 }
我用得是第二个，用来压缩文件集合了