使用zip32.dll,ZIP32J.DLL,UNZIP32.DLL进行压缩和解压zip文件

首先，需要准备好题目中必须得的3个dll文件。可以在网络中搜索并下载。

然后，我习惯把他们放在工程的debug目录下。

以下是代码：

public static class ZipManager    {        //锁定对象        private static readonly object m_oLockObject = new object();        //ZIP解压缩        [DllImport("Unzip32")]        private extern static int UnZip(int hwnd, string szCmdLine, StringBuilder szOutput, int dwSize);                //ZIP压缩        [DllImport("ZIP32J.DLL", CharSet = CharSet.Ansi)]        private extern static int Zip(IntPtr hwnd, string szCmdLine, StringBuilder szOutput, int dwSize);        /// <summary>        /// 解压指定的ZIP文件        /// </summary>        /// <param name="targetFile">解压文件</param>        /// <param name="destFolder">目标文件夹</param>        /// <returns>执行结果</returns>        public static long ExpandZip(string targetFile, string destFolder)        {            lock (m_oLockObject)            {                string command = "-xsoqq--i \"" + targetFile + "\" \"" + destFolder + "\\\"";                return UnZip(0, command, new StringBuilder(), 0);            }        }        /// <summary>        /// 解压指定的ZIP文件[指定密码]        /// </summary>        /// <param name="targetFile">解压文件</param>        /// <param name="destFolder">目标文件夹</param>        /// <param name="password">密码(半角英文数字)</param>        /// <returns>执行结果</returns>        public static long ExpandZipWithPassword(string targetFile, string destFolder, string password)        {            lock (m_oLockObject)            {                StringBuilder sbOutput = new StringBuilder(1024);                string sCmdLine = string.Format("-x -o -q -P {0} \"{1}\" \"{2}\\\" *.*", password, targetFile, destFolder);                return UnZip(0, sCmdLine, sbOutput, sbOutput.Capacity);            }        }        /// <summary>        /// ZIP压缩[指定文件夹]        /// </summary>        /// <param name="folderPath">压缩对象文件夹(指定完全路径)</param>        /// <param name="zipFilePath">ZIP文件名</param>        /// <returns>返回值：0正常结束</returns>        public static int ArchiveZip(string folderPath, string zipFilePath)        {            lock (m_oLockObject)            {                StringBuilder sbOutput = new StringBuilder(1024);                string sCmdLine = string.Format("-r -q \"{0}\" \"{1}\"\\ \"{2}\\*\"", zipFilePath, Directory.GetParent(folderPath).FullName, folderPath);                int iZipRtn = Zip((IntPtr)0, sCmdLine, sbOutput, sbOutput.Capacity);                return iZipRtn;            }                    }        /// <summary>        /// ZIP压缩[指定文件夹,指定密码]        /// </summary>        /// <param name="folderPath">压缩对象文件夹(指定完全路径)</param>        /// <param name="zipFilePath">ZIP文件名</param>        /// <param name="password">密码(半角英文数字)</param>        /// <returns>返回值：0正常结束</returns>        public static int ArchiveZipWithPassword(string folderPath, string zipFilePath, string password)        {            lock (m_oLockObject)            {                StringBuilder sbOutput = new StringBuilder(1024);                string sCmdLine = string.Format("-r -q -P {0} \"{1}\" \"{2}\"\\ \"{3}\\*\"", password, zipFilePath, Directory.GetParent(folderPath).FullName, folderPath);                int iZipRtn = Zip((IntPtr)0, sCmdLine, sbOutput, sbOutput.Capacity);                return iZipRtn;            }        }        /// <summary>        /// ZIP压缩[指定ファイル]        /// </summary>        /// <param name="aryFilePath">压缩对象文件数组(指定完全路径)</param>        /// <param name="zipFilePath">ZIP文件名</param>        /// <returns>返回值：0正常结束</returns>        public static int ArchiveZip(string[] aryFilePath, string zipFilePath)        {            lock (m_oLockObject)            {                StringBuilder sbCmdLine = new StringBuilder(1024);                StringBuilder sbOutput = new StringBuilder(1024);                sbCmdLine.AppendFormat("-q -j \"{0}\"", zipFilePath);                                foreach (string sFilePath in aryFilePath)                {                    sbCmdLine.AppendFormat(" \"{0}\"", sFilePath);                }                string sCmdLine = sbCmdLine.ToString();                int iZipRtn = Zip((IntPtr)0, sCmdLine, sbOutput, sbOutput.Capacity);                return iZipRtn;            }        }        /// <summary>        /// ZIP压缩[指定ファイル,指定密码]        /// </summary>        /// <param name="aryFilePath">压缩对象文件数组(指定完全路径)</param>        /// <param name="zipFilePath">ZIP文件名</param>        /// <param name="password">密码</param>        /// <returns>返回值：0正常结束</returns>        public static int ArchiveZipWithPassword(string[] aryFilePath, string zipFilePath, string password)        {            lock (m_oLockObject)            {                StringBuilder sbCmdLine = new StringBuilder(1024);                StringBuilder sbOutput = new StringBuilder(1024);                sbCmdLine.AppendFormat("-q -j -P {0} \"{1}\"", password, zipFilePath);                foreach (string sFilePath in aryFilePath)                {                    sbCmdLine.AppendFormat(" \"{0}\"", sFilePath);                }                string sCmdLine = sbCmdLine.ToString();                int iZipRtn = Zip((IntPtr)0, sCmdLine, sbOutput, sbOutput.Capacity);                return iZipRtn;            }        }    }