7z 命令行 进行单文件极限压缩与解压

1、首先将7z.dll、7z.exe、7zFM.exe、7zG.exe放入到项目中某一文件夹下

2、当文件极限压缩

public static string ZipFile(string fileName, string zipFileName)
        {
            path = "";
            try
            {
                string zipPara;
                zipPara = "a \"" + zipFileName + "\"    " + " \"" + fileName + "\"  -mx9 -m0=LZMA:d=27 -ms=2048m -mmt=2";
                if (File.Exists(zipFileName)) //判断压缩文件是否存在，如果存在就删除掉
                {
                    File.Delete(zipFileName);
                }
                if (!SeventZPrcess(zipPara))
                {
                    return path;
                }
                return path = zipFileName;
            }
            catch
            {
                return path;
            }
        }

3、当文件解压

/// 解压缩文件(解压后不带目录)
        /// 

        /// 解压缩文件（解压后不带目录）
        /// 
        /// 压缩文件名
        /// 解压缩后文件的路径
        /// 返回值true:成功  false:失败
        public static bool UnZipFile(string zipFileName, string unZipPath)
        {
            try
            {

                string arguments = " e -y \"" + zipFileName + "\" -o\"" + unZipPath + "\"";

                return SeventZPrcess(arguments);
            }
            catch
            {
                return false;
            }
        }

4、开启7z.exe进程

public static bool SeventZPrcess(string arguments)
        {
            Process winrarPro = new System.Diagnostics.Process();
            winrarPro.StartInfo.WindowStyle = ProcessWindowStyle.Minimized; //隐藏压缩窗口
            winrarPro.StartInfo.FileName = AppDomain.CurrentDomain.SetupInformation.ApplicationBase + "7z\\7z.exe"; //System.Windows.Forms.Application.StartupPath + "\\7z.exe";
            winrarPro.StartInfo.CreateNoWindow = false;
            winrarPro.StartInfo.Arguments = arguments;
            winrarPro.Start();
            winrarPro.WaitForExit();
            int iExitCode = 0;
            if (winrarPro.HasExited)
            {
                iExitCode = winrarPro.ExitCode;
                winrarPro.Close();
                if (iExitCode != 0 && iExitCode != 1)
                {
                    return false;
                }
            }
            return true;

        }