/// <summary>
/// 利用 WinRAR 进行解压缩
/// </summary>
/// <param name="path">文件解压路径（绝对）</param>
/// <param name="rarPath">将要解压缩的 .rar 文件的存放目录（绝对路径）</param>
/// <param name="rarName">将要解压缩的 .rar 文件名（包括后缀）</param>
/// <returns>true 或 false。解压缩成功返回 true，反之，false。</returns>
public static bool UnRAR(string path, string rarPath, string rarName)
{
bool flag = false;
string rarexe;
RegistryKey regkey;
Object regvalue;
string cmd;
ProcessStartInfo startinfo;
Process process;
try
{
regkey = Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\WinRAR.exe");
regvalue = regkey.GetValue("");
rarexe = regvalue.ToString();
regkey.Close();
// rarexe = rarexe.Substring(1, rarexe.Length - 7);
Directory.CreateDirectory(path.Trim());
//解压缩命令，相当于在要压缩文件(rarName)上点右键 ->WinRAR->解压到当前文件夹
cmd = string.Format("x {0} {1} -y", rarName, path);
startinfo = new ProcessStartInfo();
startinfo.FileName = rarexe;
startinfo.Arguments = cmd;
startinfo.WindowStyle = ProcessWindowStyle.Hidden;
startinfo.WorkingDirectory = rarPath;
process = new Process();
process.StartInfo = startinfo;
process.Start();
process.WaitForExit();
if (process.HasExited)
{
if (process.ExitCode == 0)
{
flag = true;
}

            }
            process.Close();
        }
        catch (Exception e)
        {
            throw e;
        }
        return flag;
    }